81639490060800

Names of 81639490060800

• Cardinal: 81639490060800 can be written as Eighty-one trillion, six hundred thirty-nine billion, four hundred ninety million, sixty thousand, eight hundred.

Scientific notation

• Scientific notation: 8.16394900608 × 10¹³

Factors of 81639490060800

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 797305

Divisors of 81639490060800

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 32 35 36 40 42 45 48 50 56 60 63 64 70 72 75 80 84 90 96 100 105 112 120 126 127 128 140 144 150 160 168 175 180 192 200 210 224 225 240 252 254 256 280 288 300 315 320 336 350 360 381 384 400 420 448 450 480 504 508 512 525 560 576 600 630 635 640 672 700 720 762 768 800 840 889 896 900 960 1008 1016 1050 1120 1143 1152 1200 1260 1270 1280 1344 1400 1440 1524 1536 1575 1600 1680 1778 1792 1800 1905 1920 2016 2032 2100 2240 2286 2304 2400 2520 2540 2560 2667 2688 2800 2880 3048 3150 3175 3200 3360 3556 3584 3600 3810 3840 4032 4064 4200 4445 4480 4572 4608 4800 5040 5080 5334 5376 5600 5715 5760 6096 6300 6350 6400 6720 7112 7200 7620 7680 8001 8064 8128 8400 8890 8960 9144 9525 9600 10080 10160 10668 10752 11200 11430 11520 12192 12600 12700 12800 13335 13440 14224 14400 15240 16002 16128 16256 16800 17780 17920 18288 19050 19200 20160 20320 21336 22225 22400 22860 23040 24384 25200 25400 26670 26880 28448 28575 28800 30480 32004 32256 32512 33600 35560 36576 38100 38400 40005 40320 40640 42672 44450 44800 45720 48768 50400 50800 53340 53760 56896 57150 57600 60960 64008 65024 66675 67200 71120 73152 76200 80010 80640 81280 85344 88900 89600 91440 97536 100800 101600 106680 113792 114300 115200 121920 128016 133350 134400 142240 146304 152400 160020 161280 162560 170688 177800 182880 195072 200025 201600 203200 213360 227584 228600 243840 256032 266700 268800 284480 292608 304800 320040 325120 341376 355600 365760 400050 403200 406400 426720 455168 457200 487680 512064 533400 568960 585216 609600 640080 682752 711200 731520 797161 800100 806400 812800 853440 914400 975360 1024128 1066800 1137920 1219200 1280160 1365504 1422400 1463040 1594322 1600200 1625600 1706880 1828800 2048256 2133600 2275840 2391483 2438400 2560320 2844800 2926080 3188644 3200400 3413760 3657600 3985805 4096512 4267200 4782966 4876800 5120640 5580127 5689600 6377288 6400800 6827520 7174449 7315200 7971610 8534400 9565932 10241280 11160254 11379200 11957415 12754576 12801600 14348898 14630400 15943220 16740381 17068800 19131864 19929025 20482560 22320508 23914830 25509152 25603200 27900635 28697796 31886440 33480762 34137600 35872245 38263728 39858050 44641016 47829660 50221143 51018304 51206400 55801270 57395592 59787075 63772880 66961524 71744490 76527456 79716100 83701905 89282032 95659320 100442286 101239447 102036608 102412800 111602540 114791184 119574150 127545760 133923048 139503175 143488980 153054912 159432200 167403810 178564064 179361225 191318640 200884572 202478894 204073216 223205080 229582368 239148300 251105715 255091520 267846096 279006350 286977960 303718341 306109824 318864400 334807620 357128128 358722450 382637280 401769144 404957788 408146432 418509525 446410160 459164736 478296600 502211430 506197235 510183040 535692192 558012700 573955920 607436682 612219648 637728800 669615240 708676129 714256256 717444900 765274560 803538288 809915576 837019050 892820320 911155023 918329472 956593200 1004422860 1012394470 1020366080 1071384384 1116025400 1147911840 1214873364 1224439296 1255528575 1275457600 1339230480 1417352258 1428512512 1434889800 1518591705 1530549120 1607076576 1619831152 1674038100 1785640640 1822310046 1836658944 1913186400 2008845720 2024788940 2040732160 2126028387 2142768768 2232050800 2295823680 2429746728 2511057150 2530986175 2550915200 2678460960 2834704516 2857025024 2869779600 3037183410 3061098240 3214153152 3239662304 3348076200 3543380645 3571281280 3644620092 3673317888 3826372800 4017691440 4049577880 4252056774 4285537536 4464101600 4555775115 4591647360 4859493456 5022114300 5061972350 5101830400 5356921920 5669409032 5739559200 6074366820 6122196480 6378085161 6428306304 6479324608 6696152400 7086761290 7142562560 7289240184 7592958525 7652745600 8035382880 8099155760 8504113548 8571075072 8928203200 9111550230 9183294720 9718986912 10044228600 10123944700 10203660800 10630141935 10713843840 11338818064 11479118400 12148733640 12756170322 12856612608 12958649216 13392304800 14173522580 14285125120 14578480368 15185917050 15305491200 16070765760 16198311520 17008227096 17716903225 17856406400 18223100460 18366589440 19437973824 20088457200 20247889400 21260283870 21427687680 22677636128 22778875575 22958236800 24297467280 25512340644 25713225216 25917298432 26784609600 28347045160 29156960736 30371834100 30610982400 31890425805 32141531520 32396623040 34016454192 35433806450 35712812800 36446200920 38875947648 40176914400 40495778800 42520567740 42855375360 45355272256 45557751150 45916473600 48594934560 51024681288 51834596864 53150709675 53569219200 56694090320 58313921472 60743668200 63780851610 64283063040 64793246080 68032908384 70867612900 71425625600 72892401840 77751895296 80353828800 80991557600 85041135480 90710544512 91115502300 91832947200 97189869120 102049362576 106301419350 107138438400 113388180640 116627842944 121487336400 127561703220 128566126080 129586492160 136065816768 141735225800 145784803680 155503790592 159452129025 160707657600 161983115200 170082270960 181421089024 182231004600 194379738240 204098725152 212602838700 214276876800 226776361280 233255685888 242974672800 255123406440 259172984320 272131633536 283470451600 291569607360 318904258050 321415315200 323966230400 340164541920 362842178048 364462009200 388759476480 408197450304 425205677400 453552722560 466511371776 485949345600 510246812880 544263267072 566940903200 583139214720 637808516100 642830630400 647932460800 680329083840 728924018400 777518952960 816394900608 850411354800 907105445120 971898691200 1020493625760 1088526534144 1133881806400 1166278429440 1275617032200 1295864921600 1360658167680 1457848036800 1632789801216 1700822709600 1814210890240 1943797382400 2040987251520 2267763612800 2332556858880 2551234064400 2721316335360 2915696073600 3265579602432 3401645419200 3887594764800 4081974503040 4535527225600 5102468128800 5442632670720 5831392147200 6803290838400 8163949006080 9071054451200 10204936257600 11662784294400 13606581676800 16327898012160 20409872515200 27213163353600 40819745030400 81639490060800
• Sum of all divisors σ(n): 336532664911872
• Sum of proper divisors (its aliquot sum) s(n): 254893174851072
• 81639490060800 is an abundant number, because the sum of its proper divisors (254893174851072) is greater than itself. Its abundance is 173253684790272

Bases of 81639490060800

• Binary: 10010100100000000101100110011100000001000000000₂
• Hexadecimal: 0x4A402CCE0200
• Base-36: SXSNWIGW0

Squares and roots of 81639490060800

• 81639490060800 squared (81639490060800²) is 6665006337387461987696640000
• 81639490060800 cubed (81639490060800³) is 544127718636312714383097653165555712000000
• The square root of 81639490060800 is 9035457.3797235081
• The cube root of 81639490060800 is 43381.0534890795

Scales and comparisons

• 81,639,490,060,800 seconds is equal to 2,595,883 years, 13 weeks, 2 days, 8 hours.
• To count from 1 to 81,639,490,060,800 would take you about six million, four hundred eighty-nine thousand, seven 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 81639490060800 cubic inches would be around 3615.1 feet tall.

Recreational maths with 81639490060800

• 81639490060800 backwards is 00806009493618
• The number of decimal digits it has is: 14
• The sum of 81639490060800's digits is 54
• More coming soon!