21145721292800

Names of 21145721292800

• Cardinal: 21145721292800 can be written as Twenty-one trillion, one hundred forty-five billion, seven hundred twenty-one million, two hundred ninety-two thousand, eight hundred.

Scientific notation

• Scientific notation: 2.11457212928 × 10¹³

Factors of 21145721292800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 18
• Sum of prime factors: 5023

Divisors of 21145721292800

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 4 5 8 10 13 16 17 20 25 26 29 32 34 40 50 52 58 64 65 68 80 85 100 104 116 128 130 136 145 160 169 170 200 208 221 232 256 260 272 290 320 325 338 340 377 400 416 425 442 464 493 512 520 544 580 640 650 676 680 725 754 800 832 845 850 884 928 986 1024 1040 1088 1105 1160 1280 1300 1352 1360 1450 1508 1600 1664 1690 1700 1768 1856 1885 1972 2048 2080 2176 2210 2320 2465 2560 2600 2704 2720 2873 2900 3016 3200 3328 3380 3400 3536 3712 3770 3944 4160 4225 4352 4420 4640 4901 4930 4957 5120 5200 5408 5440 5525 5746 5800 6032 6400 6409 6656 6760 6800 7072 7424 7540 7888 8320 8450 8704 8840 9280 9425 9802 9860 9914 10240 10400 10816 10880 11050 11492 11600 12064 12325 12800 12818 13312 13520 13600 14144 14365 14848 15080 15776 16640 16900 17408 17680 18560 18850 19604 19720 19828 20800 21632 21760 22100 22984 23200 24128 24505 24650 24785 25600 25636 26624 27040 27200 28288 28730 29696 30160 31552 32045 33280 33800 34816 35360 37120 37700 39208 39440 39656 41600 43264 43520 44200 45968 46400 48256 49010 49300 49570 51200 51272 54080 54400 56576 57460 59392 60320 63104 64090 64441 66560 67600 70720 71825 74240 75400 78416 78880 79312 83200 83317 84269 86528 87040 88400 91936 92800 96512 98020 98600 99140 102544 108160 108800 113152 114920 120640 122525 123925 126208 128180 128882 133120 135200 141440 143650 143753 148480 150800 156832 157760 158624 160225 166400 166634 168538 173056 174080 176800 183872 185600 193024 196040 197200 198280 205088 216320 217600 226304 229840 241280 245050 247850 252416 256360 257764 270400 282880 287300 287506 296960 301600 313664 315520 317248 320450 322205 332800 333268 337076 346112 353600 367744 371200 386048 392080 394400 396560 410176 416585 421345 432640 435200 452608 459680 482560 490100 495700 504832 512720 515528 540800 565760 574600 575012 603200 627328 631040 634496 640900 644410 665600 666536 674152 707200 718765 735488 742400 772096 784160 788800 793120 820352 833170 837733 842690 865280 870400 919360 965120 980200 991400 1009664 1025440 1031056 1081600 1095497 1131520 1149200 1150024 1206400 1254656 1262080 1268992 1281800 1288820 1333072 1348304 1414400 1437530 1470976 1484800 1568320 1577600 1586240 1611025 1640704 1666340 1675466 1685380 1730560 1838720 1868789 1930240 1960400 1982800 2050880 2062112 2082925 2106725 2163200 2190994 2263040 2298400 2300048 2412800 2443801 2509312 2524160 2537984 2563600 2577640 2666144 2696608 2828800 2875060 2941952 3136640 3155200 3172480 3222050 3281408 3332680 3350932 3370760 3593825 3677440 3737578 3860480 3920800 3965600 4101760 4124224 4165850 4188665 4213450 4326400 4381988 4596800 4600096 4825600 4887602 5018624 5048320 5075968 5127200 5155280 5332288 5393216 5477485 5657600 5750120 5883904 6273280 6310400 6344960 6444100 6562816 6665360 6701864 6741520 7187650 7354880 7475156 7841600 7931200 8203520 8248448 8331700 8377330 8426900 8652800 8763976 9193600 9200192 9343945 9651200 9775204 10037248 10151936 10254400 10310560 10664576 10786432 10954970 11315200 11500240 12219005 12546560 12620800 12689920 12888200 13125632 13330720 13403728 13483040 14241461 14375300 14709760 14950312 15683200 15862400 16407040 16496896 16663400 16754660 16853800 17527952 18387200 18400384 18687890 19302400 19550408 20508800 20621120 20943325 21329152 21572864 21909940 23000480 24294257 24438010 25093120 25241600 25379840 25776400 26661440 26807456 26966080 27387425 28482922 28750600 29419520 29900624 31366400 31724800 31769413 32814080 32993792 33326800 33509320 33707600 35055904 36774400 36800768 37375780 39100816 41017600 41242240 41886650 42658304 43145728 43819880 46000960 46719725 48588514 48876020 50186240 50759680 51552800 53322880 53614912 53932160 54774850 56965844 57501200 59801248 61095025 62732800 63449600 63538826 65628160 65987584 66653600 67018640 67415200 70111808 71207305 73548800 73601536 74751560 78201632 82035200 82484480 83773300 85316608 86291456 87639760 92001920 93439450 97177028 97752040 103105600 106645760 107229824 107864320 109549700 113931688 115002400 119602496 121471285 122190050 125465600 126899200 127077652 131975168 133307200 134037280 134830400 140223616 142414610 147097600 147203072 149503120 156403264 158847065 164070400 164968960 167546600 170633216 172582912 175279520 184003840 186878900 194354056 195504080 206211200 213291520 214459648 215728640 219099400 227863376 230004800 239204992 242942570 244380100 250931200 253798400 254155304 266614400 268074560 269660800 280447232 284829220 294406144 299006240 312806528 317694130 328140800 329937920 335093200 350559040 356036525 368007680 373757800 388708112 391008160 412422400 413002369 426583040 428919296 431457280 438198800 455726752 460009600 478409984 485885140 488760200 508310608 533228800 536149120 539321600 560894464 569658440 598012480 607356425 625613056 635388260 659875840 670186400 701118080 712073050 736015360 747515600 777416224 782016320 794235325 824844800 826004738 853166080 857838592 862914560 876397600 911453504 920019200 956819968 971770280 977520400 1016621216 1066457600 1072298240 1078643200 1121788928 1139316880 1196024960 1214712850 1251226112 1270776520 1340372800 1402236160 1424146100 1472030720 1495031200 1554832448 1564032640 1588470650 1649689600 1652009476 1715677184 1752795200 1822907008 1840038400 1913639936 1943540560 1955040800 2033242432 2065011845 2132915200 2144596480 2157286400 2243577856 2278633760 2392049920 2429425700 2502452224 2541553040 2680745600 2804472320 2848292200 2990062400 3109664896 3128065280 3176941300 3299379200 3304018952 3505590400 3645814016 3680076800 3827279872 3887081120 3910081600 4066484864 4130023690 4265830400 4289192960 4314572800 4557267520 4784099840 4858851400 5004904448 5083106080 5361491200 5608944640 5696584400 5980124800 6219329792 6256130560 6353882600 6608037904 7011180800 7291628032 7360153600 7774162240 7820163200 8132969728 8260047380 8578385920 9114535040 9568199680 9717702800 10166212160 10325059225 10722982400 11217889280 11393168800 11960249600 12438659584 12512261120 12707765200 13216075808 14022361600 14583256064 15548324480 15640326400 16265939456 16520094760 18229070080 19136399360 19435405600 20332424320 20650118450 21445964800 22786337600 23920499200 24877319168 25024522240 25415530400 26432151616 28044723200 29166512128 31096648960 31280652800 32531878912 33040189520 36458140160 38870811200 40664848640 41300236900 42891929600 45572675200 47840998400 49754638336 50831060800 52864303232 56089446400 62193297920 62561305600 65063757824 66080379040 72916280320 77741622400 81329697280 82600473800 91145350400 95681996800 101662121600 105728606464 124386595840 125122611200 132160758080 145832560640 155483244800 162659394560 165200947600 182290700800 203324243200 211457212928 248773191680 264321516160 310966489600 325318789120 330401895200 364581401600 406648486400 422914425856 528643032320 621932979200 660803790400 729162803200 813296972800 845828851712 1057286064640 1243865958400 1321607580800 1626593945600 2114572129280 2643215161600 4229144258560 5286430323200 10572860646400 21145721292800
• Sum of all divisors σ(n): 62196646894200
• Sum of proper divisors (its aliquot sum) s(n): 41050925601400
• 21145721292800 is an abundant number, because the sum of its proper divisors (41050925601400) is greater than itself. Its abundance is 19905204308600

Bases of 21145721292800

• Binary: 100110011101101011111001101001100100000000000₂
• Hexadecimal: 0x133B5F34C800
• Base-36: 7HU7KHOU8

Squares and roots of 21145721292800

• 21145721292800 squared (21145721292800²) is 447141528992775303331840000
• 21145721292800 cubed (21145721292800³) is 9455130150517677269030067872202752000000
• The square root of 21145721292800 is 4598447.7046934001
• The cube root of 21145721292800 is 27652.9096442631

Scales and comparisons

• 21,145,721,292,800 seconds is equal to 672,368 years, 27 weeks, 3 days, 14 hours, 13 minutes, 20 seconds.
• To count from 1 to 21,145,721,292,800 would take you about one million, six hundred eighty thousand, nine hundred twenty-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 21145721292800 cubic inches would be around 2304.4 feet tall.

Recreational maths with 21145721292800

• 21145721292800 backwards is 00829212754112
• The number of decimal digits it has is: 14
• The sum of 21145721292800's digits is 44
• More coming soon!