81013390920
81,013,390,920 is an even composite number composed of seven prime numbers multiplied together.
81013390920 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one thousand, one hundred fifty-two divisors.
Prime factorization of 81013390920:
23 × 38 × 5 × 7 × 11 × 19 × 211
(2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 7 × 11 × 19 × 211)See below for interesting mathematical facts about the number 81013390920 from the Numbermatics database.
Names of 81013390920
- Cardinal: 81013390920 can be written as Eighty-one billion, thirteen million, three hundred ninety thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 8.101339092 × 1010
Factors of 81013390920
Divisors of 81013390920
- Number of divisors d(n): 1152
-
Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 11 12 14 15 18 19 20 21 22 24 27 28 30 33 35 36 38 40 42 44 45 54 55 56 57 60 63 66 70 72 76 77 81 84 88 90 95 99 105 108 110 114 120 126 132 133 135 140 152 154 162 165 168 171 180 189 190 198 209 210 211 216 220 228 231 243 252 264 266 270 280 285 297 308 315 324 330 342 360 378 380 385 396 399 405 418 420 422 440 456 462 486 495 504 513 532 540 567 570 594 616 627 630 633 648 660 665 684 693 729 756 760 770 792 798 810 836 840 844 855 891 924 945 972 990 1026 1045 1055 1064 1080 1134 1140 1155 1188 1197 1215 1254 1260 1266 1320 1330 1368 1386 1458 1463 1477 1485 1512 1539 1540 1596 1620 1672 1688 1701 1710 1782 1848 1881 1890 1899 1944 1980 1995 2052 2079 2090 2110 2187 2268 2280 2310 2321 2376 2394 2430 2508 2520 2532 2565 2660 2673 2772 2835 2916 2926 2954 2970 3078 3080 3135 3165 3192 3240 3402 3420 3465 3564 3591 3645 3762 3780 3798 3960 3990 4009 4104 4158 4180 4220 4374 4389 4431 4455 4536 4617 4620 4642 4788 4860 5016 5064 5103 5130 5320 5346 5544 5643 5670 5697 5832 5852 5908 5940 5985 6156 6237 6270 6330 6561 6804 6840 6930 6963 7128 7182 7290 7315 7385 7524 7560 7596 7695 7980 8018 8019 8316 8360 8440 8505 8748 8778 8862 8910 9234 9240 9284 9405 9495 9576 9720 10206 10260 10395 10692 10773 10935 11286 11340 11394 11605 11704 11816 11880 11970 12027 12312 12474 12540 12660 13122 13167 13293 13365 13608 13851 13860 13926 14364 14580 14630 14770 15048 15192 15309 15390 15960 16036 16038 16247 16632 16929 17010 17091 17496 17556 17724 17820 17955 18468 18568 18711 18810 18990 20045 20412 20520 20790 20889 21384 21546 21870 21945 22155 22572 22680 22788 23085 23210 23940 24054 24057 24948 25080 25320 25515 26244 26334 26586 26730 27702 27720 27852 28063 28215 28485 28728 29160 29260 29540 30618 30780 31185 32072 32076 32319 32494 32805 33858 34020 34182 34815 35112 35448 35640 35910 36081 36936 37422 37620 37980 39501 39879 40090 40095 40824 41553 41580 41778 43092 43740 43890 44099 44310 45144 45576 45927 46170 46420 47880 48108 48114 48741 49896 50787 51030 51273 52488 52668 53172 53460 53865 55404 55704 56126 56133 56430 56970 58520 59080 60135 61236 61560 62370 62667 64152 64638 64988 65610 65835 66465 67716 68040 68364 69255 69630 71820 72162 72171 74844 75240 75960 76545 79002 79758 80180 80190 81235 83106 83160 83556 84189 84645 85455 86184 87480 87780 88198 88620 91854 92340 92840 93555 96216 96228 96957 97482 101574 102060 102546 104445 105336 106344 106920 107730 108243 110808 112252 112266 112860 113940 118503 119637 120270 120285 122472 124659 124740 125334 129276 129976 131220 131670 132297 132930 135432 136728 138510 139260 140315 143640 144324 144342 146223 149688 152361 153090 153819 158004 159516 160360 160380 161595 162470 166212 167112 168378 168399 169290 170910 175560 176396 177240 180405 183708 184680 187110 188001 192456 193914 194964 197505 199395 203148 204120 205092 207765 208890 215460 216486 220495 224504 224532 225720 227880 229635 237006 239274 240540 240570 243705 249318 249480 250668 252567 253935 256365 258552 262440 263340 264594 265860 277020 278520 280630 280665 288648 288684 290871 292446 304722 306180 307638 308693 313335 316008 319032 320760 323190 324729 324940 332424 336756 336798 338580 341820 352792 355509 358911 360810 360855 367416 374220 376002 387828 389928 395010 396891 398790 406296 410184 415530 417780 420945 430920 432972 438669 440990 449064 457083 459270 461457 474012 478548 481080 481140 484785 487410 498636 501336 505134 505197 507870 512730 526680 529188 531720 541215 554040 561260 561330 564003 577368 581742 584892 592515 598185 609444 612360 615276 617386 623295 626670 646380 649458 649880 661485 673512 673596 677160 683640 711018 717822 721620 721710 731115 748440 752004 757701 761805 769095 775656 790020 793782 797580 831060 835560 841890 841995 865944 872613 877338 881980 914166 918540 922914 926079 940005 948024 957096 962280 969570 974187 974820 997272 1010268 1010394 1015740 1025460 1058376 1066527 1076733 1082430 1122520 1122660 1128006 1163484 1169784 1185030 1190673 1196370 1218888 1230552 1234772 1246590 1253340 1262835 1292760 1298916 1316007 1322970 1347192 1371249 1384371 1422036 1435644 1443240 1443420 1454355 1462230 1504008 1515402 1523610 1538190 1543465 1580040 1587564 1595160 1623645 1662120 1683780 1683990 1692009 1745226 1754676 1763960 1777545 1794555 1828332 1837080 1845828 1852158 1880010 1939140 1948374 1949640 1984455 2020536 2020788 2031480 2050920 2133054 2153466 2164860 2193345 2245320 2256012 2273103 2285415 2307285 2326968 2370060 2381346 2392740 2469544 2493180 2506680 2525670 2525985 2597832 2632014 2645940 2742498 2768742 2778237 2820015 2844072 2871288 2886840 2908710 2922561 2924460 3030804 3047220 3076380 3086930 3175128 3199581 3230199 3247290 3367560 3367980 3384018 3490452 3509352 3555090 3572019 3589110 3656664 3691656 3704316 3760020 3788505 3878280 3896748 3948021 3968910 4041576 4266108 4306932 4329720 4363065 4386690 4512024 4546206 4570830 4614570 4630395 4740120 4762692 4785480 4870935 4986360 5051340 5051970 5076027 5264028 5291880 5332635 5383665 5484996 5537484 5556474 5640030 5817420 5845122 5848920 5953365 6061608 6094440 6152760 6173860 6399162 6460398 6494580 6580035 6735960 6768036 6819309 6856245 6921855 6980904 7110180 7144038 7178220 7408632 7520040 7577010 7793496 7896042 7937820 8334711 8460045 8532216 8613864 8726130 8767683 8773380 9092412 9141660 9229140 9260790 9525384 9598743 9690597 9741870 10102680 10103940 10152054 10528056 10665270 10716057 10767330 10969992 11074968 11112948 11280060 11365515 11634840 11690244 11844063 11906730 12347720 12798324 12920796 12989160 13160070 13536072 13638618 13712490 13843710 13891185 14220360 14288076 14356440 14612805 15154020 15228081 15792084 15875640 15997905 16150995 16669422 16920090 17452260 17535366 17546760 17860095 18184824 18283320 18458280 18521580 19197486 19381194 19483740 19740105 20207880 20304108 20457927 21330540 21432114 21534660 22225896 22560120 22731030 23380488 23688126 23813460 25004133 25380135 25596648 25841592 26303049 26320140 27277236 27424980 27687420 27782370 28576152 29225610 30308040 30456162 31584168 31995810 32148171 32301990 33338844 33840180 34096545 34904520 35070732 35532189 35720190 37043160 38394972 38762388 38967480 39480210 40608216 40915854 41673555 42661080 42864228 43069320 43838415 45462060 47376252 47626920 47993715 48452985 50008266 50760270 52606098 52640280 53580285 54554472 54849960 55374840 55564740 58451220 59220315 60912324 61373781 63991620 64296342 64603980 66677688 67680360 68193090 70141464 71064378 71440380 75012399 76140405 76789944 77524776 78960420 81831708 83347110 85728456 87676830 90924120 94752504 95987430 96444513 96905970 100016532 101520540 102289635 105212196 106596567 107160570 111129480 116902440 118440630 121824648 122747562 125020665 127983240 128592684 129207960 131515245 136386180 142128756 142880760 150024798 152280810 157920840 160740855 163663416 166694220 175353660 177660945 184121343 191974860 192889026 193811940 200033064 203041080 204579270 210424392 213193134 214321140 225037197 236881260 245495124 250041330 257185368 263030490 272772360 284257512 289333539 300049596 304561620 306868905 321481710 333388440 350707320 355321890 368242686 375061995 383949720 385778052 387623880 409158540 426386268 428642280 450074394 473762520 482222565 490990248 500082660 526060980 532982835 578667078 600099192 609123240 613737810 642963420 675111591 710643780 736485372 750123990 771556104 818317080 852772536 900148788 920606715 964445130 1000165320 1052121960 1065965670 1125185985 1157334156 1227475620 1285926840 1350223182 1421287560 1446667695 1472970744 1500247980 1800297576 1841213430 1928890260 2025334773 2131931340 2250371970 2314668312 2454951240 2700446364 2893335390 3000495960 3375557955 3682426860 3857780520 4050669546 4263862680 4500743940 5400892728 5786670780 6751115910 7364853720 8101339092 9001487880 10126673865 11573341560 13502231820 16202678184 20253347730 27004463640 40506695460 81013390920
- Sum of all divisors σ(n): 360511257600
- Sum of proper divisors (its aliquot sum) s(n): 279497866680
- 81013390920 is an abundant number, because the sum of its proper divisors (279497866680) is greater than itself. Its abundance is 198484475760
Bases of 81013390920
- Binary: 10010110111001100011000111110010010002
- Hexadecimal: 0x12DCC63E48
- Base-36: 117TA4I0
Squares and roots of 81013390920
- 81013390920 squared (810133909202) is 6563169508356738446400
- 81013390920 cubed (810133909203) is 531704617054728658574396666688000
-
The
square root of 81013390920 is 284628.5138913527 -
The
cube root of 81013390920 is 4326.9871304831
Scales and comparisons
How big is 81013390920?- 81,013,390,920 seconds is equal to 2,575 years, 50 weeks, 4 days, 23 hours, 42 minutes.
-
To count from 1 to 81,013,390,920 would take you about five thousand, one hundred fifty-one 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 81013390920 cubic inches would be around 360.6 feet tall.
Recreational maths with 81013390920
- 81013390920 backwards is 02909331018
- 81013390920 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81013390920's digits is 36
- More coming soon!
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Cite this page
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The information we have on file for 81013390920 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!
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