21215328699840

Names of 21215328699840

• Cardinal: 21215328699840 can be written as Twenty-one trillion, two hundred fifteen billion, three hundred twenty-eight million, six hundred ninety-nine thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.121532869984 × 10¹³

Factors of 21215328699840

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 741

Divisors of 21215328699840

• Number of divisors d(n): 1344
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 16 19 20 22 24 30 32 33 38 40 44 48 55 57 60 64 66 76 80 88 95 96 110 113 114 120 121 132 152 160 165 176 190 192 209 220 226 228 240 242 257 264 285 304 320 330 331 339 352 363 380 418 440 452 456 480 484 514 528 565 570 605 608 627 660 662 678 704 726 760 771 836 880 904 912 960 968 993 1028 1045 1056 1130 1140 1210 1216 1243 1254 1285 1320 1324 1356 1452 1520 1542 1655 1672 1695 1760 1808 1815 1824 1936 1986 2056 2090 2112 2147 2260 2280 2299 2420 2486 2508 2570 2640 2648 2712 2827 2904 3040 3084 3135 3310 3344 3390 3520 3616 3630 3641 3648 3729 3855 3872 3972 4112 4180 4294 4520 4560 4598 4840 4883 4965 4972 5016 5140 5280 5296 5424 5654 5808 6080 6168 6215 6270 6289 6441 6620 6688 6780 6897 7232 7260 7282 7458 7710 7744 7944 8224 8360 8481 8588 9040 9120 9196 9680 9766 9930 9944 10032 10280 10560 10592 10735 10848 10923 11308 11495 11616 12336 12430 12540 12578 12882 13240 13376 13560 13673 13794 14135 14520 14564 14649 14916 15420 15888 16448 16720 16962 17176 18080 18205 18240 18392 18645 18867 19360 19532 19860 19888 20064 20560 21184 21470 21696 21846 22616 22990 23232 23617 24415 24672 24860 25080 25156 25764 26480 27120 27346 27588 28270 29040 29041 29128 29298 29832 30840 31097 31445 31776 32205 33440 33924 34352 34485 36160 36410 36784 37290 37403 37734 38720 39064 39720 39776 40051 40128 41019 41120 42405 42940 43692 45232 45980 47234 48830 49344 49720 50160 50312 51528 52960 53713 54240 54615 54692 55176 56540 58080 58082 58256 58596 59664 61680 62194 62890 63552 64410 66880 67848 68365 68704 68970 69179 70851 72820 73245 73568 74580 74806 75468 78128 79440 79552 80102 82038 82240 84810 85067 85880 87123 87384 90464 91960 93291 94335 94468 97660 99440 100320 100624 103056 105920 107426 108480 109230 109384 110352 112209 113080 116160 116164 116512 117192 118085 119328 120153 123360 124388 125780 128820 135696 136730 137408 137940 138358 141702 145205 145640 146490 147136 149160 149612 150936 155485 156256 158880 160204 161139 164076 169620 170134 171760 174246 174768 180928 183920 186582 187015 188670 188936 195320 198880 200255 200640 201248 205095 206112 207537 214852 218460 218768 220704 224418 226160 232328 233024 234384 236170 238656 240306 246720 248776 251560 255201 257640 259787 268565 271392 273460 275880 276716 283404 290410 291280 292980 298320 299224 301872 310970 312512 317760 319451 320408 322278 328152 339240 340268 343520 345895 348492 349536 354255 367840 373164 374030 377340 377872 390640 397760 400510 402496 410190 411433 412224 415074 425335 429704 435615 436920 437536 441408 448836 452320 464656 466455 468768 472340 480612 497552 503120 510402 515280 519574 537130 542784 546920 551760 551779 553432 561045 566808 580820 582560 585960 590843 596640 598448 600765 603744 621940 638902 640816 644556 656304 678480 680536 687040 691790 696984 699072 708510 710657 735680 746328 748060 754680 755744 760969 779361 781280 801020 805695 820380 822866 830148 850670 859408 871230 873840 875072 897672 904640 929312 932910 935737 937536 944680 958353 961224 995104 1006240 1020804 1030560 1037685 1039148 1074260 1093840 1103520 1103558 1106864 1122090 1133616 1161640 1165120 1171920 1181686 1193280 1196896 1201530 1207488 1234299 1243880 1276005 1277804 1281632 1289112 1298935 1312608 1356960 1361072 1383580 1393968 1417020 1421314 1492656 1496120 1509360 1511488 1521938 1558722 1562560 1597255 1602040 1611390 1616273 1640760 1645732 1655337 1660296 1701340 1718816 1742460 1747680 1772529 1795344 1858624 1865820 1871474 1889360 1916706 1922448 1990208 2012480 2041608 2057165 2061120 2075370 2078296 2131971 2148520 2187680 2207040 2207116 2213728 2244180 2267232 2282907 2323280 2343840 2363372 2393792 2403060 2468598 2487760 2552010 2555608 2563264 2578224 2597870 2625216 2713920 2722144 2758895 2767160 2787936 2807211 2834040 2842628 2954215 2985312 2992240 3018720 3043876 3117444 3194510 3204080 3222780 3232546 3281520 3291464 3310674 3320592 3402680 3437632 3484920 3495360 3513961 3545058 3553285 3590688 3731640 3742948 3778720 3804845 3833412 3844896 3896805 4083216 4114330 4150740 4156592 4263942 4297040 4375360 4414232 4427456 4488360 4525763 4534464 4565814 4646560 4678685 4687680 4726744 4791765 4806120 4848819 4937196 4975520 5104020 5111216 5156448 5195740 5444288 5517790 5534320 5575872 5614422 5668080 5685256 5908430 5970624 5984480 6037440 6069569 6087752 6171495 6234888 6389020 6408160 6445560 6465092 6563040 6582928 6621348 6641184 6805360 6969840 7027922 7090116 7106570 7181376 7463280 7485896 7557440 7609690 7666824 7689792 7793610 7817227 8081365 8166432 8228660 8276685 8301480 8313184 8527884 8594080 8828464 8862645 8976720 9051526 9131628 9293120 9357370 9453488 9583530 9612240 9612571 9697638 9874392 9951040 10208040 10222432 10293107 10312896 10391480 10541883 10659855 11035580 11068640 11228844 11336160 11370512 11414535 11816860 11968960 12139138 12175504 12342990 12469776 12778040 12816320 12891120 12930184 13126080 13165856 13242696 13282368 13577289 13610720 13939680 14036055 14055844 14180232 14213140 14926560 14971792 15219380 15333648 15587220 15634454 16162730 16332864 16457320 16553370 16602960 16626368 17055768 17188160 17569805 17656928 17725290 17779003 17953440 18103052 18208707 18263256 18714740 18906976 19167060 19224480 19225142 19395276 19748784 20416080 20444864 20586214 20782960 21083766 21319710 22071160 22137280 22457688 22628815 22672320 22741024 22829070 23451681 23633720 24244095 24278276 24351008 24685980 24939552 25556080 25782240 25860368 26331712 26485392 27154578 27221440 27879360 28072110 28111688 28360464 28426280 28837713 29853120 29943584 30347845 30438760 30667296 30879321 31174440 31268908 32325460 32914640 33106740 33205920 34111536 35139610 35313856 35450580 35558006 35906880 36206104 36417414 36526512 37429480 37813952 38334120 38448960 38450284 38790552 39086135 39497568 40832160 41172428 41565920 42167532 42639420 44142320 44915376 45257630 45482048 45658140 46903362 47267440 48062855 48488190 48556552 48702016 49371960 49879104 51112160 51465535 51564480 51720736 52709415 52970784 53337009 54309156 56144220 56223376 56720928 56852560 57675426 59887168 60695690 60877520 61334592 61758642 62348880 62537816 64650920 65829280 66213480 66411840 66765259 67886445 68223072 70279220 70901160 71116012 72412208 72834828 73053024 74858960 76668240 76900568 77581104 78172270 78995136 81664320 82344856 83131840 84335064 85278840 85989497 88284640 88895015 89830752 90515260 91043535 91316280 93806724 94534880 96125710 96976380 97113104 98743920 102224320 102931070 103441472 105418830 105738281 105941568 106674018 108618312 112288440 112446752 113441856 113705120 115350852 117258405 121391380 121755040 123517284 124697760 125075632 129301840 131658560 132426960 133530518 135772890 136446144 140558440 141802320 142232024 144188565 144824416 145669656 146106048 149717920 153336480 153801136 154396605 155162208 156344540 164689712 168670128 170557680 171978994 176569280 177790030 179661504 181030520 182087070 182632560 182638849 187613448 189069760 192251420 193952760 194226208 195569033 197487840 200295777 205862140 210837660 211476562 213348036 217236624 224576880 224893504 227410240 230701704 234516810 242782760 243510080 247034568 249395520 250151264 257968491 258603680 264853920 266685045 267061036 271545780 281116880 283604640 284464048 288377130 289648832 291339312 299435840 306672960 307602272 308793210 310324416 312689080 317214843 329379424 333826295 337340256 341115360 343957988 355580060 362061040 364174140 365265120 365277698 375226896 384502840 387905520 388452416 391138066 394975680 400591554 411724280 421675320 422953124 426696072 429947485 434473248 449153760 461403408 469033620 485565520 494069136 500302528 515936982 517207360 528691405 529707840 533370090 534122072 543091560 547916547 562233760 567209280 568928096 576754260 582678624 586707099 615204544 617586420 625378160 634429686 658758848 667652590 674680512 682230720 687915976 711160120 724122080 728348280 730530240 730555396 750453792 769005680 775811040 782276132 801183108 823448560 843350640 845906248 853392144 859894970 868946496 898307520 913194245 922806816 938067240 971131040 977845165 988138272 1001478885 1031873964 1057382810 1066740180 1068244144 1086183120 1095833094 1124467520 1137856192 1153508520 1163121091 1165357248 1173414198 1235172840 1250756320 1268859372 1289842455 1335305180 1375831952 1422320240 1448244160 1456696560 1461110792 1500907584 1538011360 1551622080 1564552264 1586074215 1602366216 1646897120 1686701280 1691812496 1706784288 1719789940 1826388490 1845613632 1876134480 1942262080 1955690330 1976276544 2002957770 2009027339 2063747928 2114765620 2133480360 2136488288 2172366240 2191666188 2307017040 2326242182 2346828396 2470345680 2501512640 2537718744 2579684910 2670610360 2739582735 2751663904 2844640480 2913393120 2922221584 2933535495 3076022720 3129104528 3172148430 3204732432 3293794240 3373402560 3383624992 3413568576 3439579880 3489363273 3652776980 3752268960 3911380660 4005915540 4018054678 4127495856 4229531240 4266960720 4272976576 4344732480 4383332376 4614034080 4652484364 4693656792 4940691360 5075437488 5159369820 5341220720 5479165470 5503327808 5689280960 5815605455 5826786240 5844443168 5867070990 6027082017 6258209056 6344296860 6409464864 6767249984 6879159760 6978726546 7305553960 7504537920 7822761320 8011831080 8036109356 8254991712 8459062480 8533921440 8766664752 9228068160 9304968728 9387313584 9881382720 10045136695 10150874976 10318739640 10682441440 10958330940 11631210910 11688886336 11734141980 12054164034 12516418112 12688593720 12818929728 13758319520 13957453092 14611107920 15645522640 16023662160 16072218712 16509983424 16918124960 17067842880 17446816365 17533329504 18609937456 18774627168 20090273390 20301749952 20637479280 21364882880 21916661880 22099300729 23262421820 23468283960 24108328068 25377187440 27516639040 27914906184 29222215840 30135410085 31291045280 32047324320 32144437424 33836249920 34893632730 35066659008 37219874912 37549254336 40180546780 41274958560 43833323760 44198601458 46524843640 46936567920 48216656136 50754374880 55829812368 58444431680 60270820170 62582090560 64094648640 64288874848 66297902187 69787265460 74439749824 80361093560 82549917120 87666647520 88397202916 93049687280 93873135840 96433312272 101508749760 110496503645 111659624736 120541640340 128577749696 132595804374 139574530920 160722187120 175333295040 176794405832 186099374560 187746271680 192866624544 220993007290 223319249472 241083280680 265191608748 279149061840 321444374240 331489510935 353588811664 372198749120 385733249088 441986014580 482166561360 530383217496 558298123680 642888748480 662979021870 707177623328 883972029160 964333122720 1060766434992 1116596247360 1325958043740 1414355246656 1767944058320 1928666245440 2121532869984 2651916087480 3535888116640 4243065739968 5303832174960 7071776233280 10607664349920 21215328699840
• Sum of all divisors σ(n): 79169743941120
• Sum of proper divisors (its aliquot sum) s(n): 57954415241280
• 21215328699840 is an abundant number, because the sum of its proper divisors (57954415241280) is greater than itself. Its abundance is 36739086541440

Bases of 21215328699840

• Binary: 100110100101110010100001000011000010111000000₂
• Hexadecimal: 0x134B942185C0
• Base-36: 7IQ6QXZUO

Squares and roots of 21215328699840

• 21215328699840 squared (21215328699840²) is 450090171842254784816025600
• 21215328699840 cubed (21215328699840³) is 9548810940200905381524991366044155904000
• The square root of 21215328699840 is 4606010.0629329937
• The cube root of 21215328699840 is 27683.2189930027

Scales and comparisons

• 21,215,328,699,840 seconds is equal to 674,581 years, 43 weeks, 21 hours, 4 minutes.
• To count from 1 to 21,215,328,699,840 would take you about one million, six hundred eighty-six thousand, four hundred fifty-four 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 21215328699840 cubic inches would be around 2306.9 feet tall.

Recreational maths with 21215328699840

• 21215328699840 backwards is 04899682351212
• 21215328699840 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21215328699840's digits is 60
• More coming soon!