19201539240000000
19,201,539,240,000,000 is an even composite number composed of five prime numbers multiplied together.
19201539240000000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four thousand, four hundred eighty divisors.
Prime factorization of 19201539240000000:
29 × 36 × 57 × 13 × 373
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 5 × 5 × 5 × 5 × 5 × 13 × 37 × 37 × 37)See below for interesting mathematical facts about the number 19201539240000000 from the Numbermatics database.
Names of 19201539240000000
- Cardinal: 19201539240000000 can be written as Nineteen quadrillion, two hundred one trillion, five hundred thirty-nine billion, two hundred forty million.
Scientific notation
- Scientific notation: 1.920153924 × 1016
Factors of 19201539240000000
Divisors of 19201539240000000
- Number of divisors d(n): 4480
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 27 30 32 36 37 39 40 45 48 50 52 54 60 64 65 72 74 75 78 80 81 90 96 100 104 108 111 117 120 125 128 130 135 144 148 150 156 160 162 180 185 192 195 200 208 216 222 225 234 240 243 250 256 260 270 288 296 300 312 320 324 325 333 351 360 370 375 384 390 400 405 416 432 444 450 468 480 481 486 500 512 520 540 555 576 585 592 600 624 625 640 648 650 666 675 702 720 729 740 750 768 780 800 810 832 864 888 900 925 936 960 962 972 975 999 1000 1040 1053 1080 1110 1125 1152 1170 1184 1200 1215 1248 1250 1280 1296 1300 1332 1350 1369 1404 1440 1443 1458 1480 1500 1536 1560 1600 1620 1625 1664 1665 1728 1755 1776 1800 1850 1872 1875 1920 1924 1944 1950 1998 2000 2025 2080 2106 2160 2220 2250 2304 2340 2368 2400 2405 2430 2496 2500 2560 2592 2600 2664 2700 2738 2775 2808 2880 2886 2916 2925 2960 2997 3000 3120 3125 3159 3200 3240 3250 3328 3330 3375 3456 3510 3552 3600 3645 3700 3744 3750 3840 3848 3888 3900 3996 4000 4050 4107 4160 4212 4320 4329 4440 4500 4608 4625 4680 4736 4800 4810 4860 4875 4992 4995 5000 5184 5200 5265 5328 5400 5476 5550 5616 5625 5760 5772 5832 5850 5920 5994 6000 6075 6240 6250 6318 6400 6480 6500 6656 6660 6750 6845 6912 7020 7104 7200 7215 7290 7400 7488 7500 7680 7696 7776 7800 7992 8000 8100 8125 8214 8320 8325 8424 8640 8658 8775 8880 8991 9000 9250 9360 9375 9472 9477 9600 9620 9720 9750 9984 9990 10000 10125 10368 10400 10530 10656 10800 10952 11100 11232 11250 11520 11544 11664 11700 11840 11988 12000 12025 12150 12321 12480 12500 12636 12800 12960 12987 13000 13320 13500 13690 13824 13875 14040 14208 14400 14430 14580 14625 14800 14976 14985 15000 15392 15552 15600 15625 15795 15984 16000 16200 16250 16428 16640 16650 16848 16875 17280 17316 17550 17760 17797 17982 18000 18225 18500 18720 18750 18944 18954 19200 19240 19440 19500 19968 19980 20000 20250 20535 20736 20800 21060 21312 21600 21645 21904 22200 22464 22500 23040 23088 23125 23328 23400 23680 23976 24000 24050 24300 24375 24642 24960 24975 25000 25272 25920 25974 26000 26325 26640 26973 27000 27380 27750 28080 28125 28416 28800 28860 29160 29250 29600 29952 29970 30000 30375 30784 31104 31200 31250 31590 31968 32000 32400 32500 32856 33280 33300 33696 33750 34225 34560 34632 35100 35520 35594 35964 36000 36075 36450 36963 37000 37440 37500 37908 38400 38480 38880 38961 39000 39960 40000 40500 40625 41070 41472 41600 41625 42120 42624 43200 43290 43808 43875 44400 44928 44955 45000 46176 46250 46656 46800 46875 47360 47385 47952 48000 48100 48600 48750 49284 49920 49950 50000 50544 50625 50653 51840 51948 52000 52650 53280 53391 53946 54000 54760 55500 56160 56250 56832 57600 57720 58320 58500 59200 59904 59940 60000 60125 60750 61568 61605 62208 62400 62500 63180 63936 64000 64800 64935 65000 65712 66600 67392 67500 68450 69120 69264 69375 70200 71040 71188 71928 72000 72150 72900 73125 73926 74000 74880 74925 75000 75816 76960 77760 77922 78000 78125 78975 79920 80000 81000 81250 82140 83200 83250 84240 84375 85248 86400 86580 87616 87750 88800 88985 89856 89910 90000 91125 92352 92500 93312 93600 93750 94720 94770 95904 96000 96200 97200 97500 98568 99840 99900 100000 101088 101250 101306 102675 103680 103896 104000 105300 106560 106782 107892 108000 108225 109520 110889 111000 112320 112500 115200 115440 115625 116640 116883 117000 118400 119880 120000 120250 121500 121875 123136 123210 124416 124800 124875 125000 126360 127872 129600 129870 130000 131424 131625 133200 134784 134865 135000 136900 138528 138750 140400 140625 142080 142376 143856 144000 144300 145800 146250 147852 148000 149760 149850 150000 151632 151875 151959 153920 155520 155844 156000 156250 157950 159840 160000 160173 162000 162500 164280 166400 166500 168480 168750 170496 171125 172800 173160 175232 175500 177600 177970 179712 179820 180000 180375 182250 184704 184815 185000 186624 187200 187500 189540 191808 192000 192400 194400 194805 195000 197136 199800 200000 202176 202500 202612 203125 205350 207360 207792 208000 208125 210600 213120 213564 215784 216000 216450 219040 219375 221778 222000 224640 224775 225000 230880 231250 233280 233766 234000 234375 236800 236925 239760 240000 240500 243000 243750 246272 246420 249600 249750 250000 252720 253125 253265 255744 259200 259740 260000 262848 263250 266400 266955 269568 269730 270000 273800 277056 277500 280800 281250 284160 284752 287712 288000 288600 291600 292500 295704 296000 299520 299700 300000 300625 303264 303750 303918 307840 308025 311040 311688 312000 312500 315900 319680 320000 320346 324000 324675 325000 328560 332667 333000 336960 337500 342250 345600 346320 346875 350464 350649 351000 355200 355940 359640 360000 360750 364500 365625 369408 369630 370000 373248 374400 374625 375000 379080 383616 384800 388800 389610 390000 394272 394875 399600 400000 404352 405000 405224 406250 410700 415584 416000 416250 421200 421875 426240 427128 431568 432000 432900 438080 438750 443556 444000 444925 449280 449550 450000 455625 455877 461760 462500 466560 467532 468000 468750 473600 473850 479520 480000 480519 481000 486000 487500 492840 499200 499500 500000 505440 506250 506530 511488 513375 518400 519480 520000 525696 526500 532800 533910 539136 539460 540000 541125 547600 554112 554445 555000 561600 562500 569504 575424 576000 577200 578125 583200 584415 585000 591408 592000 599400 600000 601250 606528 607500 607836 609375 615680 616050 622080 623376 624000 624375 625000 631800 639360 640692 648000 649350 650000 657120 658125 658489 665334 666000 673920 674325 675000 684500 692640 693750 700928 701298 702000 703125 710400 711880 719280 720000 721500 729000 731250 738816 739260 740000 748800 749250 750000 758160 759375 759795 767232 769600 777600 779220 780000 788544 789750 799200 800000 800865 808704 810000 810448 812500 821400 831168 832000 832500 842400 843750 852480 854256 855625 863136 864000 865800 876160 877500 887112 888000 889850 898560 899100 900000 901875 911250 911754 923520 924075 925000 933120 935064 936000 937500 947700 959040 960000 961038 962000 972000 974025 975000 985680 998001 999000 1000000 1010880 1012500 1013060 1015625 1026750 1036800 1038960 1040000 1040625 1051392 1053000 1065600 1067820 1078920 1080000 1082250 1095200 1096875 1108224 1108890 1110000 1123200 1123875 1125000 1139008 1150848 1154400 1156250 1166400 1168830 1170000 1182816 1184000 1184625 1198800 1200000 1202500 1213056 1215000 1215672 1218750 1231360 1232100 1246752 1248000 1248750 1250000 1263600 1265625 1266325 1278720 1281384 1296000 1298700 1300000 1314240 1316250 1316978 1330668 1332000 1334775 1347840 1348650 1350000 1367631 1369000 1385280 1387500 1402596 1404000 1406250 1420800 1423760 1438560 1440000 1441557 1443000 1458000 1462500 1478520 1480000 1497600 1498500 1500000 1503125 1516320 1518750 1519590 1534464 1539200 1540125 1555200 1558440 1560000 1577088 1579500 1598400 1600000 1601730 1617408 1620000 1620896 1623375 1625000 1642800 1662336 1663335 1665000 1684800 1687500 1708512 1711250 1726272 1728000 1731600 1734375 1752320 1753245 1755000 1774224 1776000 1779700 1798200 1800000 1803750 1822500 1823508 1828125 1847040 1848150 1850000 1866240 1870128 1872000 1873125 1875000 1895400 1918080 1922076 1924000 1944000 1948050 1950000 1971360 1974375 1975467 1996002 1998000 2000000 2021760 2025000 2026120 2031250 2053500 2077920 2080000 2081250 2102784 2106000 2109375 2131200 2135640 2157840 2160000 2164500 2190400 2193750 2216448 2217780 2220000 2224625 2246400 2247750 2250000 2278016 2278125 2279385 2301696 2308800 2312500 2332800 2337660 2340000 2365632 2368000 2369250 2397600 2400000 2402595 2405000 2426112 2430000 2431344 2437500 2464200 2493504 2496000 2497500 2500000 2527200 2531250 2532650 2557440 2562768 2566875 2592000 2597400 2600000 2628480 2632500 2633956 2661336 2664000 2669550 2695680 2697300 2700000 2705625 2735262 2738000 2770560 2772225 2775000 2805192 2808000 2812500 2847520 2877120 2880000 2883114 2886000 2890625 2916000 2922075 2925000 2957040 2960000 2997000 3000000 3006250 3032640 3037500 3039180 3046875 3078400 3080250 3110400 3116880 3120000 3121875 3154176 3159000 3196800 3203460 3240000 3241792 3246750 3250000 3285600 3290625 3292445 3324672 3326670 3330000 3369600 3371625 3375000 3417024 3422500 3452544 3463200 3468750 3504640 3506490 3510000 3548448 3552000 3559400 3596400 3600000 3607500 3645000 3647016 3656250 3694080 3696300 3700000 3740256 3744000 3746250 3750000 3790800 3796875 3798975 3836160 3844152 3848000 3888000 3896100 3900000 3942720 3948750 3950934 3992004 3996000 4000000 4004325 4043520 4050000 4052240 4062500 4102893 4107000 4155840 4160000 4162500 4212000 4218750 4262400 4271280 4278125 4315680 4320000 4324671 4329000 4380800 4387500 4435560 4440000 4449250 4492800 4495500 4500000 4509375 4556032 4556250 4558770 4603392 4617600 4620375 4625000 4665600 4675320 4680000 4731264 4738500 4795200 4800000 4805190 4810000 4852224 4860000 4862688 4870125 4875000 4928400 4987008 4990005 4995000 5000000 5054400 5062500 5065300 5125536 5133750 5184000 5194800 5200000 5203125 5256960 5265000 5267912 5322672 5328000 5339100 5394600 5400000 5411250 5470524 5476000 5484375 5541120 5544450 5550000 5610384 5616000 5619375 5625000 5695040 5754240 5766228 5772000 5781250 5832000 5844150 5850000 5914080 5920000 5923125 5926401 5994000 6000000 6012500 6065280 6075000 6078360 6093750 6156800 6160500 6233760 6240000 6243750 6308352 6318000 6328125 6331625 6393600 6406920 6480000 6483584 6493500 6500000 6571200 6581250 6584890 6649344 6653340 6660000 6673875 6739200 6743250 6750000 6834048 6838155 6845000 6905088 6926400 6937500 7012980 7020000 7096896 7104000 7118800 7192800 7200000 7207785 7215000 7290000 7294032 7312500 7392600 7400000 7480512 7488000 7492500 7500000 7515625 7581600 7593750 7597950 7672320 7688304 7696000 7700625 7776000 7792200 7800000 7885440 7897500 7901868 7984008 7992000 8000000 8008650 8087040 8100000 8104480 8116875 8125000 8205786 8214000 8311680 8316675 8325000 8424000 8437500 8542560 8556250 8631360 8640000 8649342 8658000 8671875 8761600 8766225 8775000 8871120 8880000 8898500 8991000 9000000 9018750 9112064 9112500 9117540 9140625 9235200 9240750 9250000 9331200 9350640 9360000 9365625 9462528 9477000 9590400 9610380 9620000 9720000 9725376 9740250 9750000 9856800 9871875 9877335 9974016 9980010 9990000 10000000 10108800 10125000 10130600 10251072 10267500 10389600 10400000 10406250 10513920 10530000 10535824 10645344 10656000 10678200 10789200 10800000 10822500 10941048 10952000 10968750 11082240 11088900 11100000 11123125 11220768 11232000 11238750 11250000 11390080 11390625 11396925 11508480 11532456 11544000 11562500 11664000 11688300 11700000 11828160 11840000 11846250 11852802 11988000 12000000 12012975 12025000 12130560 12150000 12156720 12187500 12308679 12321000 12467520 12480000 12487500 12636000 12656250 12663250 12787200 12813840 12834375 12960000 12967168 12974013 12987000 13000000 13142400 13162500 13169780 13306680 13320000 13347750 13478400 13486500 13500000 13528125 13668096 13676310 13690000 13810176 13852800 13861125 13875000 14025960 14040000 14193792 14237600 14385600 14400000 14415570 14430000 14580000 14588064 14610375 14625000 14785200 14800000 14961024 14985000 15000000 15031250 15163200 15187500 15195900 15376608 15392000 15401250 15552000 15584400 15600000 15609375 15770880 15795000 15803736 15968016 15984000 16017300 16200000 16208960 16233750 16250000 16411572 16428000 16453125 16462225 16623360 16633350 16650000 16848000 16858125 16875000 17085120 17112500 17262720 17298684 17316000 17343750 17523200 17532450 17550000 17742240 17760000 17779203 17797000 17982000 18000000 18037500 18225000 18235080 18281250 18470400 18481500 18500000 18701280 18720000 18731250 18925056 18954000 18984375 18994875 19180800 19220760 19240000 19440000 19450752 19480500 19500000 19713600 19743750 19754670 19948032 19960020 19980000 20000000 20021625 20217600 20250000 20261200 20502144 20514465 20535000 20779200 20800000 20812500 21060000 21071648 21290688 21312000 21356400 21390625 21578400 21600000 21623355 21645000 21882096 21904000 21937500 22177800 22200000 22246250 22441536 22464000 22477500 22500000 22546875 22780160 22781250 22793850 23016960 23064912 23088000 23101875 23125000 23328000 23376600 23400000 23656320 23692500 23705604 23976000 24000000 24025950 24050000 24261120 24300000 24313440 24350625 24375000 24617358 24642000 24935040 24950025 24975000 25272000 25312500 25326500 25627680 25668750 25920000 25934336 25948026 25974000 26000000 26015625 26284800 26325000 26339560 26613360 26640000 26695500 26973000 27000000 27056250 27336192 27352620 27380000 27421875 27705600 27722250 27750000 28051920 28080000 28096875 28387584 28475200 28771200 28831140 28860000 29160000 29176128 29220750 29250000 29570400 29600000 29615625 29632005 29922048 29970000 30000000 30062500 30326400 30375000 30391800 30753216 30784000 30802500 31168800 31200000 31218750 31541760 31590000 31607472 31658125 31936032 31968000 32034600 32400000 32417920 32467500 32500000 32823144 32856000 32906250 32924450 33246720 33266700 33300000 33369375 33696000 33716250 33750000 34170240 34190775 34225000 34525440 34597368 34632000 34687500 35064900 35100000 35484480 35520000 35558406 35594000 35964000 36000000 36038925 36075000 36450000 36470160 36562500 36926037 36963000 37000000 37402560 37440000 37462500 37578125 37908000 37968750 37989750 38361600 38441520 38480000 38503125 38880000 38901504 38961000 39000000 39427200 39487500 39509340 39920040 39960000 40000000 40043250 40435200 40500000 40522400 40584375 41004288 41028930 41070000 41558400 41583375 41625000 42120000 42143296 42581376 42712800 42781250 43156800 43200000 43246710 43290000 43764192 43808000 43831125 43875000 44355600 44400000 44492500 44883072 44955000 45000000 45093750 45560320 45562500 45587700 46129824 46176000 46203750 46250000 46656000 46753200 46800000 46828125 47312640 47385000 47411208 47952000 48051900 48100000 48600000 48626880 48701250 48750000 49234716 49284000 49359375 49386675 49870080 49900050 49950000 50544000 50625000 50653000 51255360 51337500 51896052 51948000 52000000 52031250 52569600 52650000 52679120 53226720 53280000 53337609 53391000 53946000 54000000 54112500 54705240 54760000 54843750 55411200 55444500 55500000 55615625 56103840 56160000 56193750 56775168 56950400 56953125 56984625 57542400 57662280 57720000 58320000 58352256 58441500 58500000 59140800 59200000 59231250 59264010 59844096 59940000 60000000 60064875 60125000 60652800 60750000 60783600 61506432 61543395 61605000 62337600 62400000 62437500 63180000 63214944 63316250 63872064 63936000 64069200 64171875 64800000 64835840 64870065 64935000 65000000 65646288 65712000 65812500 65848900 66533400 66600000 66738750 67392000 67432500 67500000 67640625 68340480 68381550 68450000 69050880 69194736 69264000 69305625 69375000 70129800 70200000 70968960 71116812 71188000 71928000 72000000 72077850 72150000 72900000 72940320 73051875 73125000 73852074 73926000 74000000 74805120 74925000 75156250 75816000 75937500 75979500 76883040 76960000 77006250 77760000 77803008 77922000 78000000 78046875 78854400 78975000 79018680 79840080 79920000 80086500 81000000 81044800 81168750 82008576 82057860 82140000 82265625 82311125 83116800 83166750 83250000 84240000 84286592 84290625 85162752 85425600 85562500 86313600 86493420 86580000 87528384 87616000 87662250 87750000 88711200 88800000 88896015 88985000 89766144 89910000 90000000 90187500 91125000 91175400 92259648 92352000 92407500 92500000 93506400 93600000 93656250 94625280 94770000 94822416 94974375 95904000 96103800 96200000 97200000 97253760 97402500 97500000 98469432 98568000 98718750 98773350 99740160 99800100 99900000 100108125 101088000 101250000 101306000 102510720 102572325 102675000 103792104 103896000 104000000 104062500 105300000 105358240 106453440 106560000 106675218 106782000 106953125 107892000 108000000 108116775 108225000 109410480 109520000 109687500 110889000 111000000 111231250 112207680 112320000 112387500 112734375 113900800 113906250 113969250 115084800 115324560 115440000 115509375 116640000 116704512 116883000 117000000 118281600 118462500 118528020 119880000 120000000 120129750 120250000 121305600 121500000 121567200 121753125 123012864 123086790 123210000 124675200 124750125 124875000 126360000 126429888 126632500 127744128 128138400 128343750 129600000 129671680 129740130 129870000 130000000 131292576 131424000 131625000 131697800 133066800 133200000 133477500 134865000 135000000 135281250 136680960 136763100 136900000 138389472 138528000 138611250 138750000 140259600 140400000 140484375 141937920 142233624 142376000 143856000 144155700 144300000 145800000 145880640 146103750 146250000 147704148 147852000 148000000 148078125 148160025 149610240 149850000 150312500 151632000 151875000 151959000 153766080 153920000 154012500 155844000 156000000 156093750 157708800 157950000 158037360 158290625 159680160 159840000 160012827 160173000 162000000 162089600 162337500 164115720 164280000 164531250 164622250 166233600 166333500 166500000 166846875 168480000 168573184 168581250 170325504 170851200 170953875 171125000 172627200 172986840 173160000 175056768 175324500 175500000 177422400 177600000 177792030 177970000 179532288 179820000 180000000 180194625 180375000 182250000 182350800 184519296 184630185 184815000 185000000 187012800 187200000 187312500 189540000 189644832 189948750 191808000 192207600 192400000 192515625 194400000 194507520 194805000 195000000 196938864 197136000 197437500 197546700 199600200 199800000 200216250 202176000 202500000 202612000 202921875 205021440 205144650 205350000 207584208 207792000 207916875 208125000 210600000 210716480 212906880 213350436 213564000 213906250 215784000 216000000 216233550 216450000 218820960 219040000 219155625 219375000 221778000 222000000 222462500 224415360 224775000 225468750 227801600 227812500 227938500 230649120 230880000 231018750 233280000 233409024 233766000 234000000 234140625 236563200 236925000 237056040 239760000 240259500 240500000 243000000 243134400 243506250 246025728 246173580 246420000 246796875 246933375 249350400 249500250 249750000 252720000 252859776 253265000 255488256 256276800 256687500 259480260 259740000 260000000 262585152 262848000 263250000 263395600 266133600 266400000 266688045 266955000 269730000 270000000 270562500 273526200 273800000 276778944 277056000 277222500 277500000 278078125 280519200 280800000 280968750 283875840 284467248 284752000 284923125 287712000 288311400 288600000 291600000 291761280 292207500 292500000 295408296 295704000 296000000 296156250 296320050 299220480 299700000 300324375 300625000 303264000 303750000 303918000 307532160 307716975 308025000 311688000 312000000 312187500 315900000 316074720 316581250 319360320 319680000 320025654 320346000 320859375 324000000 324179200 324350325 324675000 328231440 328560000 329062500 329244500 332667000 333000000 333693750 336960000 337146368 337162500 338203125 341702400 341907750 342250000 345254400 345973680 346320000 346528125 350113536 350649000 351000000 354844800 355584060 355940000 359640000 360000000 360389250 360750000 364500000 364701600 365259375 369038592 369260370 369630000 370000000 374025600 374625000 379080000 379289664 379897500 384415200 384800000 385031250 388800000 389015040 389610000 390000000 393877728 394272000 394875000 395093400 399200400 399600000 400432500 405000000 405224000 405843750 410042880 410289300 410700000 411555625 415168416 415584000 415833750 416250000 421200000 421432960 421453125 425813760 426700872 427128000 427812500 431568000 432467100 432900000 437641920 438080000 438311250 438750000 443556000 444000000 444480075 444925000 448830720 449550000 450937500 455625000 455877000 461298240 461760000 462037500 467532000 468000000 468281250 473126400 473850000 474112080 474871875 479520000 480038481 480519000 481000000 486000000 486268800 487012500 492347160 492840000 493593750 493866750 498700800 499000500 499500000 500540625 505440000 505719552 506530000 510976512 512553600 512861625 513375000 518960520 519480000 520000000 525170304 526500000 526791200 532267200 532800000 533376090 533910000 539460000 540000000 540583875 541125000 547052400 547600000 553557888 554445000 555000000 556156250 561038400 561600000 561937500 568934496 569504000 569846250 575424000 576622800 577200000 577546875 583200000 583522560 584415000 585000000 590816592 591408000 592312500 592640100 599400000 600648750 601250000 606528000 607500000 607836000 608765625 615064320 615433950 616050000 623376000 623750625 624375000 631800000 632149440 633162500 638720640 640051308 640692000 641718750 648000000 648358400 648700650 649350000 656462880 657120000 658125000 658489000 665334000 666000000 667387500 674325000 676406250 683404800 683815500 684500000 691947360 692640000 693056250 700227072 701298000 702000000 702421875 709689600 711168120 711880000 719280000 720778500 721500000 729000000 729403200 730518750 738077184 738520740 739260000 740000000 740390625 740800125 748051200 749250000 758160000 758579328 759795000 768830400 769600000 770062500 779220000 780000000 787755456 788544000 789750000 790186800 791453125 798400800 799200000 800064135 800865000 810000000 810448000 811687500 820578600 821400000 823111250 830336832 831168000 831667500 832500000 834234375 842400000 842865920 842906250 851627520 853401744 854256000 854769375 855625000 863136000 864934200 865800000 875283840 876622500 877500000 887112000 888000000 888960150 889850000 897661440 899100000 900973125 901875000 911250000 911754000 922596480 923150925 924075000 935064000 936000000 936562500 947700000 948224160 949743750 959040000 960076962 961038000 962000000 962578125 972000000 972537600 974025000 984694320 985680000 987187500 987733500 998001000 999000000 1001081250 1010880000 1011439104 1013060000 1014609375 1025107200 1025723250 1026750000 1037921040 1038960000 1039584375 1050340608 1053000000 1053582400 1064534400 1066752180 1067820000 1078920000 1080000000 1081167750 1082250000 1094104800 1095200000 1095778125 1107115776 1108890000 1110000000 1112312500 1122076800 1123875000 1137868992 1139008000 1139692500 1153245600 1154400000 1155093750 1166400000 1167045120 1168830000 1170000000 1181633184 1182816000 1184625000 1185280200 1198800000 1201297500 1202500000 1215000000 1215672000 1217531250 1230128640 1230867900 1232100000 1234666875 1246752000 1247501250 1248750000 1263600000 1264298880 1266325000 1277441280 1280102616 1281384000 1283437500 1297401300 1298700000 1312925760 1314240000 1316250000 1316978000 1330668000 1332000000 1333440225 1334775000 1348650000 1352812500 1367631000 1369000000 1383894720 1385280000 1386112500 1390390625 1402596000 1404000000 1404843750 1419379200 1422336240 1423760000 1424615625 1438560000 1441557000 1443000000 1458000000 1458806400 1461037500 1477041480 1478520000 1480000000 1480781250 1481600250 1496102400 1498500000 1501621875 1516320000 1517158656 1519590000 1537660800 1538584875 1540125000 1558440000 1560000000 1575510912 1579500000 1580373600 1582906250 1596801600 1598400000 1600128270 1601730000 1620000000 1620896000 1621751625 1623375000 1641157200 1642800000 1646222500 1660673664 1663335000 1665000000 1668468750 1684800000 1685731840 1685812500 1706803488 1708512000 1709538750 1711250000 1726272000 1729868400 1731600000 1732640625 1750567680 1753245000 1755000000 1774224000 1777920300 1779700000 1798200000 1801946250 1803750000 1822500000 1823508000 1826296875 1845192960 1846301850 1848150000 1870128000 1873125000 1895400000 1896448320 1899487500 1920153924 1922076000 1924000000 1925156250 1944000000 1945075200 1948050000 1969388640 1971360000 1974375000 1975467000 1996002000 1998000000 2002162500 2026120000 2029218750 2050214400 2051446500 2053500000 2057778125 2075842080 2077920000 2079168750 2100681216 2106000000 2107164800 2107265625 2129068800 2133504360 2135640000 2157840000 2162335500 2164500000 2188209600 2190400000 2191556250 2214231552 2217780000 2220000000 2222400375 2224625000 2244153600 2247750000 2275737984 2279385000 2306491200 2308800000 2310187500 2337660000 2340000000 2363266368 2365632000 2369250000 2370560400 2374359375 2397600000 2400192405 2402595000 2405000000 2430000000 2431344000 2435062500 2461735800 2464200000 2469333750 2493504000 2495002500 2497500000 2502703125 2527200000 2528597760 2532650000 2554882560 2560205232 2562768000 2564308125 2566875000 2594802600 2597400000 2625851520 2632500000 2633956000 2661336000 2664000000 2666880450 2669550000 2697300000 2702919375 2705625000 2735262000 2738000000 2767789440 2772225000 2780781250 2805192000 2808000000 2809687500 2844672480 2847520000 2849231250 2877120000 2883114000 2886000000 2887734375 2916000000 2917612800 2922075000 2954082960 2957040000 2961562500 2963200500 2997000000 3003243750 3032640000 3034317312 3039180000 3043828125 3075321600 3077169750 3080250000 3116880000 3118753125 3151021824 3159000000 3160747200 3165812500 3193603200 3200256540 3203460000 3240000000 3241792000 3243503250 3246750000 3282314400 3285600000 3292445000 3321347328 3326670000 3330000000 3336937500 3371625000 3413606976 3417024000 3419077500 3422500000 3459736800 3463200000 3465281250 3501135360 3506490000 3510000000 3548448000 3555840600 3559400000 3596400000 3603892500 3607500000 3645000000 3647016000 3652593750 3690385920 3692603700 3696300000 3704000625 3740256000 3746250000 3790800000 3792896640 3798975000 3840307848 3844152000 3848000000 3850312500 3896100000 3938777280 3942720000 3948750000 3950934000 3957265625 3992004000 3996000000 4000320675 4004325000 4052240000 4058437500 4102893000 4107000000 4115556250 4151684160 4155840000 4158337500 4171171875 4212000000 4214329600 4214531250 4258137600 4267008720 4271280000 4273846875 4315680000 4324671000 4329000000 4376419200 4383112500 4435560000 4440000000 4444800750 4449250000 4488307200 4495500000 4504865625 4551475968 4558770000 4612982400 4615754625 4620375000 4675320000 4680000000 4726532736 4738500000 4741120800 4748718750 4795200000 4800384810 4805190000 4810000000 4860000000 4862688000 4870125000 4923471600 4928400000 4938667500 4990005000 4995000000 5005406250 5054400000 5057195520 5065300000 5120410464 5125536000 5128616250 5133750000 5189605200 5194800000 5197921875 5251703040 5265000000 5267912000 5322672000 5333760900 5339100000 5394600000 5405838750 5411250000 5470524000 5476000000 5478890625 5535578880 5544450000 5561562500 5610384000 5619375000 5689344960 5695040000 5698462500 5766228000 5772000000 5775468750 5832000000 5835225600 5844150000 5908165920 5914080000 5923125000 5926401000 5994000000 6006487500 6078360000 6087656250 6150643200 6154339500 6160500000 6173334375 6233760000 6237506250 6302043648 6318000000 6321494400 6331625000 6387206400 6400513080 6406920000 6487006500 6493500000 6564628800 6571200000 6584890000 6642694656 6653340000 6660000000 6667201125 6673875000 6743250000 6827213952 6838155000 6845000000 6919473600 6926400000 6930562500 7012980000 7020000000 7096896000 7111681200 7118800000 7123078125 7192800000 7207785000 7215000000 7290000000 7294032000 7305187500 7385207400 7392600000 7408001250 7480512000 7492500000 7508109375 7581600000 7585793280 7597950000 7680615696 7688304000 7692924375 7700625000 7792200000 7877554560 7897500000 7901868000 7914531250 7984008000 7992000000 8000641350 8008650000 8104480000 8108758125 8116875000 8205786000 8214000000 8231112500 8303368320 8316675000 8342343750 8424000000 8428659200 8429062500 8534017440 8542560000 8547693750 8631360000 8649342000 8658000000 8663203125 8752838400 8766225000 8871120000 8889601500 8898500000 8991000000 9009731250 9102951936 9117540000 9131484375 9225964800 9231509250 9240750000 9350640000 9453065472 9477000000 9482241600 9497437500 9600769620 9610380000 9620000000 9720000000 9725376000 9740250000 9846943200 9856800000 9877335000 9980010000 9990000000 10010812500 10130600000 10240820928 10251072000 10257232500 10267500000 10288890625 10379210400 10389600000 10395843750 10503406080 10530000000 10535824000 10645344000 10667521800 10678200000 10789200000 10811677500 10822500000 10941048000 10952000000 10957781250 11071157760 11088900000 11112001875 11123125000 11220768000 11238750000 11378689920 11396925000 11532456000 11544000000 11550937500 11688300000 11816331840 11828160000 11846250000 11852802000 11871796875 11988000000 12000962025 12012975000 12156720000 12175312500 12308679000 12321000000 12346668750 12467520000 12475012500 12513515625 12636000000 12642988800 12663250000 12774412800 12801026160 12813840000 12821540625 12974013000 12987000000 13129257600 13169780000 13306680000 13320000000 13334402250 13347750000 13486500000 13514596875 13654427904 13676310000 13690000000 13838947200 13861125000 14025960000 14040000000 14223362400 14237600000 14246156250 14385600000 14415570000 14430000000 14580000000 14588064000 14610375000 14770414800 14785200000 14816002500 14985000000 15016218750 15163200000 15171586560 15195900000 15361231392 15376608000 15385848750 15401250000 15584400000 15593765625 15755109120 15795000000 15803736000 15829062500 15968016000 16001282700 16017300000 16208960000 16217516250 16233750000 16411572000 16428000000 16462225000 16606736640 16633350000 16684687500 16858125000 17068034880 17085120000 17095387500 17298684000 17316000000 17326406250 17505676800 17532450000 17742240000 17779203000 17797000000 17982000000 18019462500 18235080000 18262968750 18451929600 18463018500 18481500000 18520003125 18701280000 18906130944 18954000000 18964483200 18994875000 19201539240 19220760000 19240000000 19480500000 19693886400 19713600000 19754670000 19960020000 19980000000 20001603375 20021625000 20261200000 20481641856 20514465000 20535000000 20577781250 20758420800 20779200000 20791687500 21060000000 21071648000 21290688000 21335043600 21356400000 21369234375 21578400000 21623355000 21645000000 21882096000 21915562500 22177800000 22224003750 22246250000 22441536000 22477500000 22524328125 22757379840 22793850000 23064912000 23078773125 23101875000 23376600000 23632663680 23692500000 23705604000 23743593750 23976000000 24001924050 24025950000 24313440000 24350625000 24617358000 24642000000 24693337500 24950025000 25027031250 25272000000 25285977600 25326500000 25602052320 25627680000 25643081250 25948026000 25974000000 25989609375 26258515200 26339560000 26613360000 26668804500 26695500000 26973000000 27029193750 27308855808 27352620000 27380000000 27394453125 27677894400 27722250000 28051920000 28446724800 28475200000 28492312500 28831140000 28860000000 29160000000 29176128000 29220750000 29540829600 29570400000 29632005000 29970000000 30032437500 30391800000 30722462784 30753216000 30771697500 30802500000 30866671875 31168800000 31187531250 31510218240 31590000000 31607472000 31658125000 31936032000 32002565400 32034600000 32435032500 32467500000 32823144000 32856000000 32924450000 33213473280 33266700000 33336005625 33369375000 33716250000 34136069760 34190775000 34597368000 34632000000 34652812500 35064900000 35484480000 35558406000 35594000000 35615390625 35964000000 36038925000 36470160000 36525937500 36926037000 36963000000 37040006250 37402560000 37540546875 37908000000 37928966400 37989750000 38403078480 38441520000 38464621875 38961000000 39387772800 39509340000 39920040000 39960000000 40003206750 40043250000 40522400000 40543790625 40963283712 41028930000 41070000000 41155562500 41516841600 41583375000 42120000000 42143296000 42670087200 42712800000 42738468750 43156800000 43246710000 43290000000 43764192000 43831125000 44355600000 44448007500 44492500000 44955000000 45048656250 45514759680 45587700000 46129824000 46157546250 46203750000 46753200000 47265327360 47385000000 47411208000 47487187500 48003848100 48051900000 48626880000 48701250000 49234716000 49284000000 49386675000 49900050000 50054062500 50653000000 51204104640 51255360000 51286162500 51444453125 51896052000 51948000000 51979218750 52517030400 52679120000 53226720000 53337609000 53391000000 53946000000 54058387500 54705240000 54760000000 54788906250 55355788800 55444500000 55560009375 56103840000 56893449600 56984625000 57662280000 57720000000 58441500000 59081659200 59140800000 59264010000 59940000000 60004810125 60064875000 60783600000 61444925568 61543395000 61605000000 61733343750 62337600000 62375062500 63180000000 63214944000 63316250000 63872064000 64005130800 64069200000 64107703125 64870065000 64935000000 65646288000 65848900000 66533400000 66672011250 66738750000 67432500000 67572984375 68272139520 68381550000 69194736000 69305625000 70129800000 71116812000 71188000000 71230781250 71928000000 72077850000 72940320000 73051875000 73852074000 73926000000 74080012500 75081093750 75816000000 75857932800 75979500000 76806156960 76883040000 76929243750 77922000000 77968828125 78775545600 79018680000 79840080000 80006413500 80086500000 81044800000 81087581250 81926567424 82057860000 82140000000 82311125000 83033683200 83166750000 85340174400 85425600000 85476937500 86493420000 86580000000 87528384000 87662250000 88711200000 88896015000 88985000000 89910000000 90097312500 91175400000 92259648000 92315092500 92407500000 92600015625 93506400000 94530654720 94770000000 94822416000 94974375000 96007696200 96103800000 97402500000 98469432000 98568000000 98773350000 99800100000 100008016875 100108125000 101306000000 102408209280 102572325000 102888906250 103792104000 103896000000 103958437500 105358240000 106453440000 106675218000 106782000000 106846171875 107892000000 108116775000 109410480000 109577812500 110889000000 111120018750 112207680000 112621640625 113786899200 113969250000 115324560000 115393865625 116883000000 118163318400 118528020000 119880000000 120009620250 120129750000 121567200000 122889851136 123086790000 123210000000 123466687500 124750125000 126360000000 126429888000 126632500000 128010261600 128138400000 128215406250 129740130000 129870000000 131292576000 131697800000 133066800000 133344022500 133477500000 134865000000 135145968750 136544279040 136763100000 138389472000 138611250000 140259600000 142233624000 142376000000 142461562500 144155700000 145880640000 146103750000 147704148000 147852000000 148160025000 150162187500 151959000000 153612313920 153766080000 153858487500 154333359375 155844000000 155937656250 157551091200 158037360000 159680160000 160012827000 160173000000 162175162500 164115720000 164280000000 164622250000 166067366400 166333500000 166680028125 170680348800 170953875000 172986840000 173160000000 175324500000 177422400000 177792030000 177970000000 179820000000 180194625000 182350800000 184630185000 184815000000 185200031250 187012800000 189540000000 189644832000 189948750000 192015392400 192207600000 192323109375 194805000000 196938864000 197546700000 199600200000 200016033750 200216250000 202612000000 202718953125 204816418560 205144650000 205777812500 207584208000 207916875000 210716480000 213350436000 213564000000 213692343750 215784000000 216233550000 218820960000 219155625000 221778000000 222240037500 225243281250 227573798400 227938500000 230649120000 230787731250 233766000000 236326636800 237056040000 240019240500 240259500000 243134400000 245779702272 246173580000 246420000000 246933375000 249500250000 253265000000 256020523200 256276800000 256430812500 259480260000 259740000000 262585152000 263395600000 266133600000 266688045000 266955000000 269730000000 270291937500 273526200000 276778944000 277222500000 277800046875 280519200000 284467248000 284923125000 288311400000 292207500000 295408296000 295704000000 296320050000 300024050625 300324375000 303918000000 307224627840 307716975000 308666718750 311688000000 311875312500 316074720000 319360320000 320025654000 320346000000 320538515625 324350325000 328231440000 329244500000 332667000000 333360056250 337864921875 341360697600 341907750000 345973680000 350649000000 355584060000 355940000000 359640000000 360389250000 364701600000 369260370000 369630000000 370400062500 379080000000 379289664000 379897500000 384030784800 384415200000 384646218750 389610000000 393877728000 395093400000 399200400000 400032067500 400432500000 405224000000 405437906250 409632837120 410289300000 411555625000 415168416000 415833750000 426700872000 427128000000 427384687500 432467100000 437641920000 438311250000 443556000000 444480075000 450486562500 455877000000 461298240000 461575462500 463000078125 467532000000 472653273600 474112080000 480038481000 480519000000 492347160000 492840000000 493866750000 499000500000 500040084375 506530000000 512041046400 512861625000 518960520000 519480000000 526791200000 532267200000 533376090000 533910000000 539460000000 540583875000 547052400000 554445000000 555600093750 561038400000 568934496000 569846250000 576622800000 576969328125 584415000000 590816592000 592640100000 600048101250 600648750000 607836000000 614449255680 615433950000 617333437500 623750625000 632149440000 640051308000 640692000000 641077031250 648700650000 656462880000 658489000000 665334000000 666720112500 675729843750 682721395200 683815500000 691947360000 701298000000 711168120000 711880000000 720778500000 729403200000 738520740000 739260000000 740800125000 759795000000 768061569600 768830400000 769292437500 779220000000 787755456000 790186800000 798400800000 800064135000 800865000000 810875812500 820578600000 823111250000 830336832000 831667500000 833400140625 853401744000 854769375000 864934200000 876622500000 887112000000 888960150000 900973125000 911754000000 923150925000 926000156250 935064000000 948224160000 960076962000 961038000000 961615546875 984694320000 987733500000 998001000000 1000080168750 1013060000000 1013594765625 1024082092800 1025723250000 1037921040000 1053582400000 1066752180000 1067820000000 1078920000000 1081167750000 1094104800000 1108890000000 1111200187500 1137868992000 1139692500000 1153245600000 1153938656250 1168830000000 1181633184000 1185280200000 1200096202500 1201297500000 1215672000000 1228898511360 1230867900000 1234666875000 1247501250000 1280102616000 1281384000000 1282154062500 1297401300000 1312925760000 1316978000000 1330668000000 1333440225000 1351459687500 1367631000000 1383894720000 1389000234375 1402596000000 1422336240000 1441557000000 1477041480000 1478520000000 1481600250000 1500120253125 1519590000000 1536123139200 1538584875000 1558440000000 1580373600000 1596801600000 1600128270000 1601730000000 1621751625000 1641157200000 1646222500000 1663335000000 1666800281250 1706803488000 1709538750000 1729868400000 1753245000000 1777920300000 1801946250000 1823508000000 1846301850000 1852000312500 1896448320000 1920153924000 1922076000000 1923231093750 1969388640000 1975467000000 1996002000000 2000160337500 2026120000000 2027189531250 2048164185600 2051446500000 2075842080000 2133504360000 2135640000000 2162335500000 2188209600000 2217780000000 2222400375000 2279385000000 2306491200000 2307877312500 2337660000000 2363266368000 2370560400000 2400192405000 2402595000000 2461735800000 2469333750000 2495002500000 2500200421875 2560205232000 2564308125000 2594802600000 2633956000000 2661336000000 2666880450000 2702919375000 2735262000000 2778000468750 2805192000000 2844672480000 2883114000000 2884846640625 2954082960000 2963200500000 3000240506250 3039180000000 3072246278400 3077169750000 3160747200000 3200256540000 3203460000000 3243503250000 3282314400000 3292445000000 3326670000000 3333600562500 3413606976000 3419077500000 3459736800000 3506490000000 3555840600000 3603892500000 3647016000000 3692603700000 3704000625000 3840307848000 3844152000000 3846462187500 3938777280000 3950934000000 3992004000000 4000320675000 4054379062500 4102893000000 4151684160000 4167000703125 4267008720000 4324671000000 4435560000000 4444800750000 4558770000000 4615754625000 4675320000000 4741120800000 4800384810000 4805190000000 4923471600000 4938667500000 4990005000000 5000400843750 5120410464000 5128616250000 5189605200000 5267912000000 5333760900000 5405838750000 5470524000000 5556000937500 5689344960000 5766228000000 5769693281250 5908165920000 5926401000000 6000481012500 6078360000000 6144492556800 6154339500000 6400513080000 6406920000000 6487006500000 6564628800000 6584890000000 6653340000000 6667201125000 6838155000000 6919473600000 7012980000000 7111681200000 7207785000000 7385207400000 7408001250000 7500601265625 7680615696000 7692924375000 7901868000000 7984008000000 8000641350000 8108758125000 8205786000000 8334001406250 8534017440000 8649342000000 8889601500000 9117540000000 9231509250000 9482241600000 9600769620000 9610380000000 9846943200000 9877335000000 9980010000000 10000801687500 10240820928000 10257232500000 10379210400000 10667521800000 10811677500000 10941048000000 11112001875000 11532456000000 11539386562500 11816331840000 11852802000000 12000962025000 12308679000000 12501002109375 12801026160000 12974013000000 13169780000000 13306680000000 13334402250000 13676310000000 14025960000000 14223362400000 14415570000000 14770414800000 14816002500000 15001202531250 15361231392000 15385848750000 15803736000000 16001282700000 16217516250000 16411572000000 16668002812500 17068034880000 17298684000000 17779203000000 18235080000000 18463018500000 19201539240000 19220760000000 19693886400000 19754670000000 19960020000000 20001603375000 20514465000000 20758420800000 21335043600000 21623355000000 22224003750000 23078773125000 23705604000000 24001924050000 24617358000000 25002004218750 25602052320000 25948026000000 26339560000000 26668804500000 27352620000000 28446724800000 28831140000000 29540829600000 29632005000000 30002405062500 30722462784000 30771697500000 32002565400000 32435032500000 32823144000000 33336005625000 34597368000000 35558406000000 36926037000000 37503006328125 38403078480000 39509340000000 39920040000000 40003206750000 41028930000000 42670087200000 43246710000000 44448007500000 46157546250000 47411208000000 48003848100000 49234716000000 50004008437500 51204104640000 51896052000000 53337609000000 54705240000000 57662280000000 59081659200000 59264010000000 60004810125000 61543395000000 64005130800000 64870065000000 66672011250000 71116812000000 73852074000000 75006012656250 76806156960000 79018680000000 80006413500000 82057860000000 85340174400000 86493420000000 88896015000000 92315092500000 96007696200000 98469432000000 100008016875000 103792104000000 106675218000000 118528020000000 120009620250000 123086790000000 128010261600000 129740130000000 133344022500000 142233624000000 147704148000000 150012025312500 153612313920000 160012827000000 164115720000000 172986840000000 177792030000000 184630185000000 192015392400000 200016033750000 213350436000000 237056040000000 240019240500000 246173580000000 256020523200000 259480260000000 266688045000000 295408296000000 300024050625000 320025654000000 355584060000000 369260370000000 384030784800000 400032067500000 426700872000000 480038481000000 492347160000000 518960520000000 533376090000000 600048101250000 640051308000000 711168120000000 738520740000000 768061569600000 800064135000000 960076962000000 1066752180000000 1200096202500000 1280102616000000 1477041480000000 1600128270000000 1920153924000000 2133504360000000 2400192405000000 3200256540000000 3840307848000000 4800384810000000 6400513080000000 9600769620000000 19201539240000000
- Sum of all divisors σ(n): 79584213134986560
- Sum of proper divisors (its aliquot sum) s(n): 60382673894986560
- 19201539240000000 is an abundant number, because the sum of its proper divisors (60382673894986560) is greater than itself. Its abundance is 41181134654986560
Bases of 19201539240000000
- Binary: 10001000011011110110010101111011000101001111010000000002
- Hexadecimal: 0x4437B2BD8A7A00
- Base-36: 592DLCMG000
Squares and roots of 19201539240000000
- 19201539240000000 squared (192015392400000002) is 368699109185259777600000000000000
- 19201539240000000 cubed (192015392400000003) is 7079590412773810049180073024000000000000000000000
-
The
square root of 19201539240000000 is 138569618.7481224181 -
The
cube root of 19201539240000000 is 267780.3355220313
Scales and comparisons
How big is 19201539240000000?- 19,201,539,240,000,000 seconds is equal to 610,549,553 years, 29 weeks, 5 days.
-
To count from 1 to 19,201,539,240,000,000 would take you about one billion, eight hundred thirty-one million, six hundred forty-eight thousand, six hundred sixty years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 19201539240000000 cubic inches would be around 22315 feet tall.
Recreational maths with 19201539240000000
- 19201539240000000 backwards is 00000004293510291
- 19201539240000000 is a
Harshad number . - The number of decimal digits it has is: 17
- The sum of 19201539240000000's digits is 36
- More coming soon!
Link to this page
HTML: To link to this page, just copy and paste the link below into your blog, web page or email.
BBCODE: To link to this page in a forum post or comment box, just copy and paste the link code below:
Cite this page
MLA style:
"Number 19201539240000000 - Facts about the integer". Numbermatics.com. 2024. Web. 20 May 2024.
APA style:
Numbermatics. (2024). Number 19201539240000000 - Facts about the integer. Retrieved 20 May 2024, from https://numbermatics.com/n/19201539240000000/
Chicago style:
Numbermatics. 2024. "Number 19201539240000000 - Facts about the integer". https://numbermatics.com/n/19201539240000000/
The information we have on file for 19201539240000000 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
Keywords: Divisors of 19201539240000000, math, Factors of 19201539240000000, curriculum, school, college, exams, university, Prime factorization of 19201539240000000, STEM, science, technology, engineering, physics, economics, calculator, nineteen quadrillion, two hundred one trillion, five hundred thirty-nine billion, two hundred forty million.