21215801947280

Names of 21215801947280

• Cardinal: 21215801947280 can be written as Twenty-one trillion, two hundred fifteen billion, eight hundred one million, nine hundred forty-seven thousand, two hundred eighty.

Scientific notation

• Scientific notation: 2.121580194728 × 10¹³

Factors of 21215801947280

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 447

Divisors of 21215801947280

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 4 5 8 10 16 17 19 20 34 38 40 41 43 68 76 80 82 85 86 95 127 136 152 164 170 172 190 193 205 215 254 272 304 323 328 340 344 361 380 386 410 430 508 635 646 656 680 688 697 722 731 760 772 779 817 820 860 965 1016 1270 1292 1360 1394 1444 1462 1520 1544 1558 1615 1634 1640 1720 1763 1805 1930 2032 2159 2413 2540 2584 2788 2888 2924 3088 3116 3230 3268 3280 3281 3440 3485 3526 3610 3655 3667 3860 3895 4085 4318 4826 5080 5168 5207 5461 5576 5776 5848 6137 6232 6460 6536 6562 6970 7052 7220 7310 7334 7720 7790 7913 8170 8299 8636 8815 9652 10160 10414 10795 10922 11152 11696 12065 12274 12464 12920 13072 13124 13243 13889 13940 14104 14440 14620 14668 14801 15440 15523 15580 15826 16340 16405 16598 17272 17630 18335 19304 20828 21590 21844 24130 24511 24548 25840 26035 26248 26486 27305 27778 27880 28208 28880 29240 29336 29602 29971 30685 31046 31160 31652 32680 32810 33196 33497 34544 35260 36670 38608 39565 41021 41495 41656 43180 43688 45847 48260 49022 49096 52070 52496 52972 54610 55556 55760 58480 58672 59204 59942 61370 62092 62320 62339 63304 65360 65620 66215 66392 66994 69445 69673 70520 73340 74005 77615 79130 82042 82990 83312 86360 87376 88519 91694 92837 96520 98044 98192 98933 103759 104140 105944 109220 111112 118408 119884 122555 122740 124184 124678 126608 131240 132430 132784 133988 134521 138890 139346 141040 141083 146680 148010 149855 150347 155230 157681 158260 164084 165980 167485 172720 177038 183388 185674 193040 196088 197866 205105 207518 208280 211888 218440 222224 223901 229235 236816 239768 245110 245480 248368 249356 251617 262480 263891 264860 267976 269042 277780 278692 282166 293360 296020 299710 300694 310460 311695 315362 316520 328168 331960 334970 340259 348365 354076 366776 371348 392176 395732 410210 415036 416560 416687 436880 442595 447802 458470 464185 465709 479536 490220 490960 494665 498712 503234 518795 527782 529720 535952 538084 555560 557384 564332 569449 592040 599420 601388 620920 623390 630724 633040 636443 656336 663920 669940 672605 680518 696730 705415 708152 733552 742696 751735 779399 788405 791464 820420 830072 833374 885190 895604 916940 928370 931418 980440 989330 997424 1004951 1006468 1037590 1053973 1055564 1059440 1076168 1111120 1114768 1119505 1128664 1138898 1184080 1184441 1198840 1202776 1241840 1246780 1258085 1261448 1272886 1319455 1339880 1345210 1361036 1393460 1410830 1416304 1485392 1503470 1558798 1576810 1582928 1640840 1660144 1666748 1681861 1701295 1763903 1770380 1791208 1833880 1856740 1862836 1879727 1960880 1971421 1978660 2009902 2012936 2075180 2083435 2107946 2111128 2152336 2239010 2257328 2277796 2328545 2368882 2397680 2405552 2493560 2516170 2522896 2545772 2555899 2638910 2679760 2680577 2690420 2722072 2786920 2821660 2847245 2856593 2995939 3006940 3117596 3153620 3182215 3281680 3333496 3363722 3402590 3527806 3540760 3582416 3667760 3713480 3725672 3759454 3806317 3896995 3942842 3957320 4019804 4025872 4150360 4166870 4215892 4222256 4254119 4478020 4555592 4657090 4737764 4987120 5024755 5032340 5091544 5111798 5269865 5277820 5361154 5380840 5444144 5573840 5643320 5694490 5713186 5784403 5922205 5991878 6013880 6235192 6307240 6364430 6464921 6666992 6727444 6805180 7055612 7081520 7426960 7451344 7518908 7612634 7793990 7885684 7914640 7917053 8039608 8300720 8333740 8409305 8431784 8508238 8819515 8848471 8956040 9111184 9314180 9398635 9475528 9857105 10049510 10064680 10183088 10223596 10539730 10555640 10722308 10761680 10819531 11286640 11388980 11426372 11568806 11844410 11983756 12027760 12470384 12614480 12728860 12779495 12929842 13402885 13454888 13610360 14111224 14282965 14979695 15037816 15225268 15587980 15771368 15834106 16079216 16667480 16818610 16863568 17016476 17084167 17639030 17696942 17912080 17917541 18628360 18797270 18951056 19031585 19094069 19714210 20025487 20099020 20129360 20447192 21079460 21111280 21270595 21444616 21639062 22777960 22852744 23137612 23688820 23967512 25457720 25558990 25859684 26805770 26909776 27220720 28222448 28565930 28922015 29959390 30075632 30450536 31175960 31542736 31668212 31955359 32324605 33334960 33514157 33637220 34032952 34168334 35278060 35393884 35835082 37256720 37594540 38063170 38188138 39428420 39585265 40050974 40198040 40894384 42158920 42541190 42889232 43212893 43278124 44242355 45555920 45705488 46275224 47377640 47935024 48562081 50915440 50930963 51117980 51719368 53611540 54097655 57131860 57844030 59918780 60901072 62351920 63336424 63910718 64649210 67028314 67274440 68065904 68336668 70556120 70787768 71670164 72320023 75189080 76126340 76376276 78856840 79170530 80101948 80396080 80828261 84317840 85082380 85420835 86425786 86556248 88484710 89587705 92550448 94755280 95470345 97124162 100127435 101861926 102235960 103438736 107223080 108195310 109903657 114263720 115688060 119837560 122833499 126672848 127821436 129298420 134056628 134548880 136673336 141112240 141575536 143340328 144640046 150378160 150424007 152252680 152752552 157713680 158341060 159776795 160203896 161656522 167570785 170164760 170841670 172851572 173112496 176969420 179175410 190940690 194248324 200254870 203723852 204471920 214446160 216064465 216390620 219807314 228527440 231376120 239675120 242810405 245666998 254654815 255642872 258596840 268113256 273346672 286680656 289280092 300848014 304505360 305505104 316682120 319553590 320407792 323313044 324599173 335141570 340329520 340433279 341683340 345703144 353938840 358350820 361600115 362787311 380484253 381881380 388496648 400509740 404141305 407447704 432128930 432781240 439614628 462752240 485620810 491333996 509309630 511285744 517193680 536226512 549518285 578560184 601696028 614167495 633364240 639107180 646626088 649198346 670283140 680866558 683366680 691406288 707877680 716701640 723200230 725574622 734619181 752120035 760968506 763762760 776993296 801019480 808282610 814895408 821044967 864257860 865562480 879229256 971241620 982667992 1018619260 1099036570 1157120368 1203392056 1228334990 1278214360 1293252176 1298396692 1340566280 1361733116 1366733360 1374080437 1433403280 1446400460 1451149244 1469238362 1504240070 1521937012 1527525520 1602038960 1616565220 1622995865 1642089934 1702166395 1728515720 1758458512 1813936555 1902421265 1942483240 1965335984 2037238520 2088169483 2198073140 2406784112 2456669980 2556428720 2596793384 2681132560 2723466232 2748160874 2892800920 2902298488 2938476724 3008480140 3043874024 3233130440 3245991730 3284179868 3404332790 3457031440 3627873110 3673095905 3804842530 3884966480 4074477040 4105224835 4176338966 4396146280 4913339960 5193586768 5446932464 5496321748 5785601840 5804596976 5876953448 6016960280 6087748048 6167384287 6466260880 6468232301 6491983460 6568359736 6808665580 6870402185 7255746220 7346191810 7609685060 8210449670 8352677932 8792292560 9826679920 10440847415 10992643496 11753906896 12033920560 12334768574 12936464602 12983966920 13136719472 13617331160 13740804370 13957764439 14511492440 14692383620 15219370120 15599854373 16420899340 16705355864 20881694830 21985286992 24669537148 25872929204 25967933840 27234662320 27481608740 27915528878 29022984880 29384767240 30438740240 30836921435 31199708746 32341161505 32841798680 33410711728 41763389660 49339074296 51745858408 54963217480 55831057756 58769534480 61673842870 62399417492 64682323010 65683597360 69788822195 77999271865 83526779320 98678148592 103491716816 109926434960 111662115512 123347685740 124798834984 129364646020 139577644390 155998543730 167053558640 223324231024 246695371480 249597669968 258729292040 265197524341 279155288780 311997087460 493390742960 517458584080 530395048682 558310577560 623994174920 1060790097364 1116621155120 1247988349840 1325987621705 2121580194728 2651975243410 4243160389456 5303950486820 10607900973640 21215801947280
• Sum of all divisors σ(n): 58536141447168
• Sum of proper divisors (its aliquot sum) s(n): 37320339499888
• 21215801947280 is an abundant number, because the sum of its proper divisors (37320339499888) is greater than itself. Its abundance is 16104537552608

Bases of 21215801947280

• Binary: 100110100101110110000010101101011010010010000₂
• Hexadecimal: 0x134BB056B490
• Base-36: 7IQEKPBWW

Squares and roots of 21215801947280

• 21215801947280 squared (21215801947280²) is 450110252266209839899398400
• 21215801947280 cubed (21215801947280³) is 9549449966520146754282753614020516352000
• The square root of 21215801947280 is 4606061.4354652283
• The cube root of 21215801947280 is 27683.4248334007

Scales and comparisons

• 21,215,801,947,280 seconds is equal to 674,596 years, 45 weeks, 4 days, 6 hours, 41 minutes, 20 seconds.
• To count from 1 to 21,215,801,947,280 would take you about one million, six hundred eighty-six thousand, four hundred ninety-two 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 21215801947280 cubic inches would be around 2307 feet tall.

Recreational maths with 21215801947280

• 21215801947280 backwards is 08274910851212
• The number of decimal digits it has is: 14
• The sum of 21215801947280's digits is 50
• More coming soon!