81513997326000

Names of 81513997326000

• Cardinal: 81513997326000 can be written as Eighty-one trillion, five hundred thirteen billion, nine hundred ninety-seven million, three hundred twenty-six thousand.

Scientific notation

• Scientific notation: 8.1513997326 × 10¹³

Factors of 81513997326000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 598342

Divisors of 81513997326000

• Number of divisors d(n): 600
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 27 29 30 36 40 45 48 50 54 58 60 72 75 80 81 87 90 100 108 116 120 125 135 144 145 150 162 174 180 200 216 225 232 240 250 261 270 290 300 324 348 360 375 400 405 432 435 450 464 500 522 540 580 600 648 675 696 720 725 750 783 810 841 870 900 1000 1044 1080 1125 1160 1200 1296 1305 1350 1392 1450 1500 1566 1620 1682 1740 1800 2000 2025 2088 2160 2175 2250 2320 2349 2523 2610 2700 2900 3000 3132 3240 3364 3375 3480 3600 3625 3915 4050 4176 4205 4350 4500 4698 5046 5220 5400 5800 6000 6264 6480 6525 6728 6750 6960 7250 7569 7830 8100 8410 8700 9000 9396 10092 10125 10440 10800 10875 11600 11745 12528 12615 13050 13456 13500 14500 15138 15660 16200 16820 17400 18000 18792 19575 20184 20250 20880 21025 21750 22707 23490 25230 26100 27000 29000 30276 31320 32400 32625 33640 34800 37584 37845 39150 40368 40500 42050 43500 45414 46980 50460 52200 54000 58000 58725 60552 62640 63075 65250 67280 68121 75690 78300 81000 84100 87000 90828 93960 97875 100920 104400 105125 113535 117450 121104 126150 130500 136242 151380 156600 162000 168200 174000 181656 187920 189225 195750 201840 210250 227070 234900 252300 261000 272484 293625 302760 313200 315375 336400 340605 363312 378450 391500 420500 454140 469800 504600 522000 544968 567675 587250 598303 605520 630750 681210 756900 783000 841000 908280 939600 946125 1009200 1089936 1135350 1174500 1196606 1261500 1362420 1513800 1566000 1682000 1703025 1794909 1816560 1892250 2270700 2349000 2393212 2523000 2724840 2838375 2991515 3027600 3406050 3589818 3784500 4541400 4698000 4786424 5046000 5384727 5449680 5676750 5983030 6812100 7179636 7569000 8515125 8974545 9082800 9572848 10769454 11353500 11966060 13624200 14359272 14957575 15138000 16154181 17030250 17350787 17949090 21538908 22707000 23932120 26923635 27248400 28718544 29915150 32308362 34060500 34701574 35898180 43077816 44872725 45414000 47864240 48462543 52052361 53847270 59830300 64616724 68121000 69403148 71796360 74787875 80770905 86155632 86753935 89745450 96925086 104104722 107694540 119660600 129233448 134618175 136242000 138806296 143592720 149575750 156157083 161541810 173507870 179490900 193850172 208209444 215389080 224363625 239321200 242312715 258466896 260261805 269236350 277612592 299151500 312314166 323083620 347015740 358981800 387700344 403854525 416418888 430778160 433769675 448727250 468471249 484625430 503172823 520523610 538472700 598303000 624628332 646167240 673090875 694031480 717963600 775400688 780785415 807709050 832837776 867539350 897454500 936942498 969250860 1006345646 1041047220 1076945400 1196606000 1211563575 1249256664 1292334480 1301309025 1346181750 1388062960 1405413747 1509518469 1561570830 1615418100 1735078700 1794909000 1873884996 1938501720 2012691292 2019272625 2082094440 2153890800 2168848375 2342356245 2423127150 2498513328 2515864115 2602618050 2692363500 2810827494 3019036938 3123141660 3230836200 3470157400 3589818000 3747769992 3877003440 3903927075 4025382584 4038545250 4164188880 4337696750 4528555407 4684712490 4846254300 5031728230 5205236100 5384727000 5621654988 6038073876 6057817875 6246283320 6461672400 6506545125 6940314800 7027068735 7495539984 7547592345 7807854150 8050765168 8077090500 8675393500 9057110814 9369424980 9692508600 10063456460 10410472200 10769454000 11243309976 11711781225 12076147752 12115635750 12492566640 12579320575 13013090250 13585666221 14054137470 15095184690 15615708300 16154181000 17350787000 18114221628 18738849960 19385017200 19519635375 20126912920 20820944400 22486619952 22642777035 23423562450 24152295504 24231271500 25158641150 26026180500 27171332442 28108274940 30190369380 31231416600 32308362000 34701574000 35135343675 36228443256 37477699920 37737961725 39039270750 40253825840 40756998663 45285554070 46847124900 48462543000 50317282300 52052361000 54342664884 56216549880 58558906125 60380738760 62462833200 62896602875 67928331105 70270687350 72456886512 75475923450 78078541500 81513997326 90571108140 93694249800 96925086000 100634564600 104104722000 108685329768 112433099760 113213885175 117117812250 120761477520 125793205750 135856662210 140541374700 150951846900 156157083000 163027994652 175676718375 181142216280 187388499600 188689808625 201269129200 203784993315 217370659536 226427770350 234235624500 251586411500 271713324420 281082749400 301903693800 312314166000 326055989304 339641655525 351353436750 362284432560 377379617250 407569986630 452855540700 468471249000 503172823000 543426648840 562165498800 566069425875 603807387600 652111978608 679283311050 702706873500 754759234500 815139973260 905711081400 936942498000 1006345646000 1018924966575 1086853297680 1132138851750 1358566622100 1405413747000 1509518469000 1630279946520 1698208277625 1811422162800 2037849933150 2264277703500 2717133244200 2810827494000 3019036938000 3260559893040 3396416555250 4075699866300 4528555407000 5094624832875 5434266488400 6792833110500 8151399732600 9057110814000 10189249665750 13585666221000 16302799465200 20378499331500 27171332442000 40756998663000 81513997326000
• Sum of all divisors σ(n): 304938123794304
• Sum of proper divisors (its aliquot sum) s(n): 223424126468304
• 81513997326000 is an abundant number, because the sum of its proper divisors (223424126468304) is greater than itself. Its abundance is 141910129142304

Bases of 81513997326000

• Binary: 10010100010001011110100110110101101011010110000₂
• Hexadecimal: 0x4A22F4DAD6B0
• Base-36: SW70HDN00

Squares and roots of 81513997326000

• 81513997326000 squared (81513997326000²) is 6644531760063135150276000000
• 81513997326000 cubed (81513997326000³) is 541622344122308472230774472161976000000000
• The square root of 81513997326000 is 9028510.2495372957
• The cube root of 81513997326000 is 43358.8142563543

Scales and comparisons

• 81,513,997,326,000 seconds is equal to 2,591,892 years, 50 weeks, 5 days, 3 hours.
• To count from 1 to 81,513,997,326,000 would take you about six million, four hundred seventy-nine thousand, seven hundred thirty-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 81513997326000 cubic inches would be around 3613.2 feet tall.

Recreational maths with 81513997326000

• 81513997326000 backwards is 00062379931518
• 81513997326000 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81513997326000's digits is 54
• More coming soon!