21438104249118720

Names of 21438104249118720

• Cardinal: 21438104249118720 can be written as Twenty-one quadrillion, four hundred thirty-eight trillion, one hundred four billion, two hundred forty-nine million, one hundred eighteen thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 2.143810424911872 × 10¹⁶

Factors of 21438104249118720

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 2083

Divisors of 21438104249118720

• Number of divisors d(n): 936
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 41 48 53 60 64 80 82 96 106 120 123 128 159 160 164 192 205 212 240 246 256 265 318 320 328 384 410 424 480 492 512 530 615 636 640 656 768 795 820 848 960 984 1024 1060 1230 1272 1280 1312 1536 1590 1640 1681 1696 1920 1968 1979 2048 2120 2173 2460 2544 2560 2624 3072 3180 3280 3362 3392 3840 3936 3958 4096 4240 4346 4920 5043 5088 5120 5248 5937 6144 6360 6519 6560 6724 6784 7680 7872 7916 8405 8480 8692 9840 9895 10086 10176 10240 10496 10865 11874 12288 12720 13038 13120 13448 13568 15360 15744 15832 16810 16960 17384 19680 19790 20172 20352 20480 20992 21730 23748 25215 25440 26076 26240 26896 27136 29685 30720 31488 31664 32595 33620 33920 34768 39360 39580 40344 40704 41984 43460 47496 50430 50880 52152 52480 53792 54272 59370 61440 62976 63328 65190 67240 67840 69536 78720 79160 80688 81139 81408 83968 86920 89093 94992 100860 101760 104304 104887 104960 107584 108544 118740 125952 126656 130380 134480 135680 139072 157440 158320 161376 162278 162816 167936 173840 178186 189984 201720 203520 208608 209774 209920 215168 217088 237480 243417 251904 253312 260760 267279 268960 271360 278144 314661 314880 316640 322752 324556 325632 347680 356372 379968 403440 405695 407040 417216 419548 419840 430336 445465 474960 486834 503808 506624 521520 524435 534558 537920 542720 556288 629322 629760 633280 645504 649112 651264 695360 712744 759936 806880 811390 814080 834432 839096 839680 860672 890930 949920 973668 1013248 1043040 1048870 1069116 1075840 1085440 1112576 1217085 1258644 1259520 1266560 1291008 1298224 1336395 1390720 1425488 1519872 1573305 1613760 1622780 1628160 1668864 1678192 1721344 1781860 1899840 1947336 2026496 2086080 2097740 2138232 2151680 2225152 2434170 2517288 2519040 2533120 2582016 2596448 2672790 2781440 2850976 3039744 3146610 3227520 3245560 3256320 3326699 3337728 3356384 3442688 3563720 3799680 3894672 3916441 4052992 4172160 4195480 4276464 4300367 4303360 4450304 4868340 5034576 5066240 5164032 5192896 5345580 5562880 5701952 6079488 6293220 6455040 6491120 6653398 6675456 6712768 6885376 7127440 7599360 7789344 7832882 8105984 8344320 8390960 8552928 8600734 8606720 8900608 9736680 9980097 10069152 10132480 10328064 10385792 10691160 11125760 11403904 11749323 12158976 12586440 12901101 12910080 12982240 13306796 13350912 13425536 14254880 15198720 15578688 15665764 16633495 16688640 16781920 17105856 17201468 17213440 19473360 19582205 19960194 20138304 20264960 20656128 20771584 21382320 21501835 22251520 22807808 23498646 24317952 25172880 25802202 25820160 25964480 26613592 26701824 26851072 28509760 30397440 31157376 31331528 33266990 33377280 33563840 34211712 34402936 34426880 38946720 39164410 39920388 40276608 40529920 41543168 42764640 43003670 44503040 45615616 46997292 49900485 50345760 51604404 51640320 51928960 53227184 53702144 57019520 58746615 60794880 62314752 62663056 64505505 66533980 66754560 67127680 68423424 68805872 77893440 78328820 79840776 80553216 83086336 85529280 86007340 91231232 93994584 99800970 100691520 103208808 103280640 103857920 106454368 107404288 114039040 117493230 121589760 124629504 125326112 129011010 133067960 133509120 134255360 136846848 137611744 155786880 156657640 159681552 160574081 161106432 166172672 171058560 172014680 176315047 182462464 187989168 199601940 201383040 206417616 207571373 207715840 212908736 214808576 228078080 234986460 249259008 250652224 258022020 266135920 268510720 273693696 275223488 311573760 313315280 319363104 321148162 322212864 332345344 342117120 344029360 352630094 364924928 375978336 399203880 402766080 412835232 415142746 415431680 425817472 429617152 456156160 469972920 481722243 498518016 501304448 516044040 528945141 532271840 537021440 547387392 550446976 622714119 623147520 626630560 638726208 642296324 644425728 684234240 688058720 705260188 751956672 798407760 802870405 805532160 825670464 830285492 830863360 851634944 881575235 912312320 939945840 963444486 997036032 1002608896 1032088080 1037856865 1057890282 1064543680 1074042880 1094774784 1100893952 1245428238 1246295040 1253261120 1277452416 1284592648 1288851456 1368468480 1376117440 1410520376 1503913344 1596815520 1605740810 1611064320 1651340928 1660570984 1661726720 1703269888 1763150470 1824624640 1879891680 1926888972 2005217792 2064176160 2075713730 2115780564 2129087360 2148085760 2201787904 2408611215 2490856476 2492590080 2506522240 2554904832 2569185296 2644725705 2736936960 2752234880 2821040752 3007826688 3113570595 3193631040 3211481620 3222128640 3302681856 3321141968 3406539776 3526300940 3759783360 3853777944 4010435584 4128352320 4151427460 4231561128 4258174720 4403575808 4817222430 4981712952 4985180160 5013044480 5109809664 5138370592 5289451410 5473873920 5504469760 5642081504 6015653376 6227141190 6387262080 6422963240 6444257280 6583537321 6605363712 6642283936 6813079552 7052601880 7519566720 7707555888 8020871168 8256704640 8302854920 8463122256 8510426293 8516349440 8807151616 9634444860 9963425904 10026088960 10219619328 10276741184 10578902820 11008939520 11284163008 12031306752 12454282380 12774524160 12845926480 13167074642 13210727424 13284567872 13626159104 14105203760 15039133440 15415111776 16041742336 16513409280 16605709840 16926244512 17020852586 17032698880 17614303232 19268889720 19750611963 19926851808 20052177920 20439238656 20553482368 21157805640 22017879040 22568326016 24062613504 24908564760 25531278879 25549048320 25691852960 26334149284 26421454848 26569135744 28210407520 30078266880 30830223552 32917686605 33026818560 33211419680 33852489024 34041705172 34065397760 38537779440 39501223926 39853703616 40104355840 40878477312 41106964736 42315611280 42552131465 44035758080 45136652032 48125227008 49817129520 51062557758 51098096640 51383705920 52668298568 52842909696 53138271488 56420815040 60156533760 61660447104 65835373210 66053637120 66422839360 67704978048 68083410344 68130795520 77075558880 79002447852 79707407232 80208711680 82213929472 84631222560 85104262930 88071516160 90273304064 98753059815 99634259040 102125115516 102196193280 102767411840 105336597136 106276542976 112841630080 120313067520 123320894208 127656394395 131670746420 132107274240 132845678720 135409956096 136166820688 154151117760 158004895704 159414814464 164427858944 169262445120 170208525860 180546608128 197506119630 199268518080 204250231032 204392386560 205534823680 210673194272 212553085952 225683260160 240626135040 246641788416 255312788790 263341492840 264214548480 265691357440 270819912192 272333641376 308302235520 316009791408 318829628928 328855717888 338524890240 340417051720 348927478013 361093216256 395012239260 398537036160 408500462064 411069647360 421346388544 425106171904 451366520320 493283576832 510625577580 526682985680 531382714880 541639824384 544667282752 616604471040 632019582816 637659257856 657711435776 677049780480 680834103440 697854956026 722186432512 790024478520 797074072320 817000924128 822139294720 842692777088 850212343808 902733040640 986567153664 1021251155160 1046782434039 1053365971360 1062765429760 1083279648768 1089334565504 1233208942080 1264039165632 1275318515712 1354099560960 1361668206880 1395709912052 1580048957040 1594148144640 1634001848256 1644278589440 1685385554176 1744637390065 1805466081280 1973134307328 2042502310320 2093564868078 2106731942720 2125530859520 2166559297536 2178669131008 2466417884160 2528078331264 2550637031424 2708199121920 2723336413760 2791419824104 3160097914080 3188296289280 3268003696512 3288557178880 3370771108352 3489274780130 3610932162560 4085004620640 4187129736156 4213463885440 4251061719040 4357338262016 4932835768320 5056156662528 5233912170195 5416398243840 5446672827520 5582839648208 6320195828160 6376592578560 6536007393024 6741542216704 6978549560260 8170009241280 8374259472312 8426927770880 8714676524032 9865671536640 10112313325056 10467824340390 10832796487680 10893345655040 11165679296416 12640391656320 12753185157120 13072014786048 13483084433408 13957099120520 16340018482560 16748518944624 16853855541760 17429353048064 20224626650112 20935648680780 21786691310080 22331358592832 25280783312640 26144029572096 26966168866816 27914198241040 32680036965120 33497037889248 33707711083520 34858706096128 40449253300224 41871297361560 43573382620160 44662717185664 50561566625280 52288059144192 55828396482080 65360073930240 66994075778496 67415422167040 80898506600448 83742594723120 87146765240320 89325434371328 101123133250560 104576118288384 111656792964160 130720147860480 133988151556992 134830844334080 167485189446240 174293530480640 178650868742656 202246266501120 223313585928320 261440295720960 267976303113984 334970378892480 357301737485312 404492533002240 446627171856640 522880591441920 535952606227968 669940757784960 714603474970624 893254343713280 1071905212455936 1339881515569920 1429206949941248 1786508687426560 2143810424911872 2679763031139840 3573017374853120 4287620849823744 5359526062279680 7146034749706240 10719052124559360 21438104249118720
• Sum of all divisors σ(n): 71670147822054288
• Sum of proper divisors (its aliquot sum) s(n): 50232043572935568
• 21438104249118720 is an abundant number, because the sum of its proper divisors (50232043572935568) is greater than itself. Its abundance is 28793939323816848

Bases of 21438104249118720

• Binary: 1001100001010011101011110011100011011010011000000000000₂
• Hexadecimal: 0x4C29D79C6D3000
• Base-36: 5V3694QH5HC

Squares and roots of 21438104249118720

• 21438104249118720 squared (21438104249118720²) is 459592313796082117473896654438400
• 21438104249118720 cubed (21438104249118720³) is 9852787935254092161663931883089248759576526848000
• The square root of 21438104249118720 is 146417568.1027339015
• The cube root of 21438104249118720 is 277797.7940989923

Scales and comparisons

• 21,438,104,249,118,720 seconds is equal to 681,665,402 years, 37 weeks, 32 minutes.
• To count from 1 to 21,438,104,249,118,720 would take you about two billion, forty-four million, nine hundred ninety-six thousand, two hundred eight 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 21438104249118720 cubic inches would be around 23149.8 feet tall.

Recreational maths with 21438104249118720

• 21438104249118720 backwards is 02781194240183412
• The number of decimal digits it has is: 17
• The sum of 21438104249118720's digits is 57
• More coming soon!