21091987519488

Names of 21091987519488

• Cardinal: 21091987519488 can be written as Twenty-one trillion, ninety-one billion, nine hundred eighty-seven million, five hundred nineteen thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1091987519488 × 10¹³

Factors of 21091987519488

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 316

Divisors of 21091987519488

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 47 48 54 64 72 81 94 96 97 108 128 141 144 162 167 188 192 194 216 256 282 288 291 324 334 376 384 388 423 432 501 512 564 576 582 648 668 752 768 776 846 864 873 1002 1024 1128 1152 1164 1269 1296 1336 1503 1504 1536 1552 1692 1728 1746 2004 2048 2256 2304 2328 2538 2592 2619 2672 3006 3008 3072 3104 3384 3456 3492 3807 4008 4509 4512 4559 4608 4656 5076 5184 5238 5344 6012 6016 6144 6208 6768 6912 6984 7614 7849 7857 8016 9018 9024 9118 9216 9312 10152 10368 10476 10688 12024 12032 12416 13527 13536 13677 13824 13968 15228 15698 15714 16032 16199 18036 18048 18236 18432 18624 20304 20736 20952 21376 23547 24048 24064 24832 27054 27072 27354 27648 27889 27936 30456 31396 31428 32064 32398 36072 36096 36472 37248 40608 41031 41472 41904 42752 47094 48096 48128 48597 49664 54108 54144 54708 55296 55778 55872 60912 62792 62856 64128 64796 70641 72144 72192 72944 74496 81216 82062 82944 83667 83808 85504 94188 96192 96256 97194 99328 108216 108288 109416 111556 111744 121824 123093 125584 125712 128256 129592 141282 144288 144384 145791 145888 148992 162432 164124 165888 167334 167616 171008 188376 192384 194388 198656 211923 216432 216576 218832 223112 223488 243648 246186 251001 251168 251424 256512 259184 282564 288576 288768 291582 291776 297984 324864 328248 334668 335232 342016 369279 376752 384768 388776 423846 432864 433152 437373 437664 446224 446976 487296 492372 502002 502336 502848 513024 518368 565128 577152 583164 583552 595968 635769 649728 656496 669336 670464 738558 753003 753504 761353 769536 777552 847692 865728 866304 874746 875328 892448 893952 974592 984744 1004004 1004672 1005696 1026048 1036736 1130256 1154304 1166328 1167104 1271538 1299456 1310783 1312119 1312992 1338672 1340928 1477116 1506006 1507008 1522706 1539072 1555104 1695384 1731456 1749492 1750656 1784896 1787904 1949184 1969488 2008008 2009344 2011392 2073472 2259009 2260512 2284059 2308608 2332656 2334208 2543076 2598912 2621566 2624238 2625984 2677344 2681856 2705233 2954232 3012012 3014016 3045412 3078144 3110208 3390768 3462912 3498984 3501312 3569792 3898368 3932349 3938976 4016016 4018688 4022784 4146944 4518018 4521024 4568118 4617216 4665312 4668416 5086152 5243132 5248476 5251968 5354688 5363712 5410466 5908464 6024024 6028032 6090824 6220416 6781536 6852177 6925824 6997968 7002624 7139584 7796736 7864698 7877952 8032032 8037376 8045568 8115699 8293888 9036036 9042048 9136236 9234432 9330624 9336832 10172304 10486264 10496952 10503936 10709376 10820932 11797047 11816928 12048048 12056064 12181648 12440832 13563072 13704354 13851648 13995936 14005248 14279168 15729396 15755904 16064064 16074752 16091136 16231398 16587776 18072072 18084096 18272472 18661248 20344608 20556531 20972528 20993904 21007872 21418752 21641864 23594094 23633856 24096096 24112128 24347097 24363296 24881664 27126144 27408708 27703296 27991872 28010496 28558336 31458792 31511808 32128128 32462796 33175552 35391141 36144144 36168192 36544944 37322496 40689216 41113062 41945056 41987808 42015744 42837504 43283728 47188188 47267712 48192192 48224256 48694194 48726592 49763328 54252288 54817416 55983744 57116672 61669593 62917584 63023616 64256256 64925592 70782282 72288288 72336384 73041291 73089888 74644992 81378432 82226124 83890112 83975616 84031488 85675008 86567456 94376376 94535424 96384384 97388388 97453184 99526656 106173423 108504576 109634832 111967488 123339186 125835168 126047232 127145951 128512512 129851184 141564564 144576576 144672768 146082582 146179776 149289984 162756864 164452248 167780224 167951232 171350016 173134912 188752752 189070848 192768768 194776776 194906368 212346846 217009152 219123873 219269664 223934976 246678372 251670336 252094464 254291902 257025024 259702368 283129128 289153152 292165164 292359552 298579968 325513728 328904496 335560448 335902464 346269824 377505504 378141696 381437853 385537536 389553552 389812736 424693692 434018304 438247746 438539328 447869952 493356744 503340672 508583804 514050048 519404736 566258256 578306304 584330328 584719104 651027456 657808992 671120896 671804928 692539648 755011008 756283392 762875706 771075072 779107104 779625472 849387384 876495492 877078656 895739904 986713488 1006681344 1017167608 1038809472 1132516512 1144313559 1156612608 1168660656 1169438208 1302054912 1315617984 1342241792 1343609856 1385079296 1510022016 1525751412 1542150144 1558214208 1559250944 1698774768 1752990984 1754157312 1973426976 2013362688 2034335216 2077618944 2265033024 2288627118 2313225216 2337321312 2338876416 2631235968 2684483584 2687219712 2770158592 3020044032 3051502824 3116428416 3397549536 3432940677 3505981968 3508314624 3946853952 4026725376 4068670432 4155237888 4530066048 4577254236 4626450432 4674642624 4677752832 5262471936 5540317184 6040088064 6103005648 6232856832 6795099072 6865881354 7011963936 7016629248 7893707904 8053450752 8137340864 8310475776 9060132096 9154508472 9349285248 10298822031 10524943872 12080176128 12206011296 12465713664 13590198144 13731762708 14023927872 14033258496 15787415808 16274681728 16620951552 18120264192 18309016944 18698570496 20597644062 21049887744 24160352256 24412022592 24931427328 27180396288 27463525416 28047855744 31574831616 32549363456 36240528384 36618033888 37397140992 41195288124 42099775488 48824045184 49862854656 54360792576 54927050832 56095711488 63149663232 65098726912 72481056768 73236067776 74794281984 82390576248 97648090368 108721585152 109854101664 112191422976 126299326464 130197453824 146472135552 149588563968 164781152496 195296180736 217443170304 219708203328 224382845952 260394907648 292944271104 329562304992 390592361472 439416406656 448765691904 585888542208 659124609984 781184722944 878832813312 1171777084416 1318249219968 1757665626624 2343554168832 2636498439936 3515331253248 5272996879872 7030662506496 10545993759744 21091987519488
• Sum of all divisors σ(n): 65395493523360
• Sum of proper divisors (its aliquot sum) s(n): 44303506003872
• 21091987519488 is an abundant number, because the sum of its proper divisors (44303506003872) is greater than itself. Its abundance is 23211518484384

Bases of 21091987519488

• Binary: 100110010111011011100011011000111100000000000₂
• Hexadecimal: 0x132EDC6C7800
• Base-36: 7H5IWSG00

Squares and roots of 21091987519488

• 21091987519488 squared (21091987519488²) is 444871937522237555179782144
• 21091987519488 cubed (21091987519488³) is 9383233353989479804315890709314794422272
• The square root of 21091987519488 is 4592601.3891353559
• The cube root of 21091987519488 is 27629.4666736315

Scales and comparisons

• 21,091,987,519,488 seconds is equal to 670,659 years, 49 weeks, 6 days, 22 hours, 4 minutes, 48 seconds.
• To count from 1 to 21,091,987,519,488 would take you about one million, six hundred seventy-six thousand, six hundred forty-nine 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 21091987519488 cubic inches would be around 2302.5 feet tall.

Recreational maths with 21091987519488

• 21091987519488 backwards is 88491578919012
• 21091987519488 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21091987519488's digits is 72
• More coming soon!