81163615168000

Names of 81163615168000

• Cardinal: 81163615168000 can be written as Eighty-one trillion, one hundred sixty-three billion, six hundred fifteen million, one hundred sixty-eight thousand.

Scientific notation

• Scientific notation: 8.1163615168 × 10¹³

Factors of 81163615168000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 2905

Divisors of 81163615168000

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 25 32 34 40 50 64 68 80 85 100 125 127 128 136 160 170 200 233 250 254 256 272 320 340 400 425 466 500 508 512 544 635 640 680 800 850 932 1000 1016 1088 1165 1270 1280 1360 1600 1700 1864 2000 2032 2125 2159 2176 2330 2521 2540 2560 2720 3175 3200 3400 3728 3961 4000 4064 4250 4318 4352 4660 5042 5080 5440 5825 6350 6400 6800 7456 7922 8000 8128 8500 8636 8704 9320 10084 10160 10795 10880 11650 12605 12700 12800 13600 14912 15844 15875 16000 16256 17000 17272 18640 19805 20168 20320 21590 21760 23300 25210 25400 27200 29125 29591 29824 31688 31750 32000 32512 34000 34544 37280 39610 40336 40640 42857 43180 43520 46600 50420 50800 53975 54400 58250 59182 59648 63025 63376 63500 64000 65024 68000 69088 74560 79220 80672 81280 85714 86360 93200 99025 100840 101600 107950 108800 116500 118364 119296 126050 126752 127000 136000 138176 147955 149120 158440 161344 162560 171428 172720 186400 198050 201680 203200 214285 215900 217600 233000 236728 252100 253504 254000 269875 272000 276352 295910 298240 315125 316880 320167 322688 325120 342856 345440 372800 396100 403360 406400 428570 431800 466000 473456 495125 503047 504200 507008 508000 539750 544000 552704 587393 591820 596480 630250 633760 640334 645376 685712 690880 739775 745600 792200 806720 812800 857140 863600 932000 946912 990250 1006094 1008400 1014016 1016000 1071425 1079500 1088000 1105408 1174786 1183640 1260500 1267520 1280668 1290752 1371424 1381760 1479550 1491200 1584400 1600835 1613440 1625600 1714280 1727200 1864000 1893824 1980500 2012188 2016800 2028032 2032000 2142850 2159000 2349572 2367280 2515235 2521000 2535040 2561336 2742848 2763520 2936965 2959100 2982400 3168800 3201670 3226880 3428560 3454400 3698875 3728000 3787648 3961000 4024376 4033600 4064000 4285700 4318000 4699144 4734560 5030470 5042000 5070080 5122672 5357125 5442839 5485696 5527040 5873930 5918200 6337600 6403340 6453760 6857120 6908800 7397750 7456000 7575296 7922000 8004175 8048752 8067200 8128000 8571400 8636000 9398288 9469120 9985681 10060940 10084000 10140160 10245344 10714250 10885678 10971392 11747860 11836400 12576175 12675200 12806680 13714240 13817600 14684825 14795500 14912000 15150592 15844000 16008350 16097504 16134400 17142800 17272000 18796576 18938240 19971362 20121880 20168000 20490688 21428500 21771356 21942784 23495720 23672800 25152350 25350400 25613360 27214195 27428480 27635200 29369650 29591000 31688000 32016700 32195008 32268800 34285600 34544000 37593152 37876480 39942724 40020875 40243760 40336000 40981376 42857000 43542712 46991440 47345600 49928405 50304700 50700800 51226720 54428390 54856960 58739300 59182000 62880875 63376000 64033400 64390016 68571200 69088000 73424125 74598911 75186304 75752960 79885448 80041750 80487520 80672000 81962752 85714000 87085424 93982880 94691200 99856810 100609400 102453440 108856780 109713920 117478600 118364000 125761750 126752000 128066800 128780032 136070975 137142400 138176000 146848250 149197822 150372608 159770896 160083500 160975040 161344000 163925504 171428000 174170848 187965760 189382400 199713620 201218800 204906880 217713560 234957200 236728000 249642025 251523500 253504000 256133600 257560064 272141950 274284800 293696500 298395644 300745216 319541792 320167000 321950080 342856000 348341696 372994555 375931520 378764800 399427240 402437600 409813760 435427120 469914400 473456000 499284050 503047000 512267200 544283900 548569600 587393000 596791288 639083584 640334000 643900160 680354875 685712000 696683392 745989110 751863040 798854480 804875200 819627520 870854240 939828800 946912000 998568100 1006094000 1024534400 1088567800 1174786000 1193582576 1248210125 1268181487 1278167168 1280668000 1287800320 1360709750 1371424000 1393366784 1491978220 1503726080 1597708960 1609750400 1741708480 1864972775 1879657600 1893824000 1997136200 2012188000 2049068800 2177135600 2349572000 2387165152 2496420250 2536362974 2556334336 2561336000 2721419500 2742848000 2786733568 2983956440 3195417920 3219500800 3483416960 3729945550 3759315200 3994272400 4024376000 4098137600 4354271200 4699144000 4774330304 4992840500 5072725948 5112668672 5122672000 5442839000 5967912880 6340907435 6390835840 6439001600 6966833920 7459891100 7518630400 7988544800 8048752000 8708542400 9324863875 9398288000 9548660608 9985681000 10145451896 10245344000 10885678000 11935825760 12681814870 12781671680 13933667840 14919782200 15977089600 16097504000 17417084800 18649727750 18796576000 19097321216 19971362000 20290903792 20490688000 21771356000 23871651520 25363629740 25563343360 29839564400 31704537175 31954179200 32195008000 34834169600 37299455500 37593152000 38194642432 39942724000 40581807584 43542712000 47743303040 50727259480 59679128800 63409074350 63908358400 69668339200 74598911000 79885448000 81163615168 87085424000 95486606080 101454518960 119358257600 126818148700 127816716800 149197822000 158522685875 159770896000 162327230336 174170848000 190973212160 202909037920 238716515200 253636297400 298395644000 317045371750 319541792000 324654460672 348341696000 405818075840 477433030400 507272594800 596791288000 634090743500 639083584000 649308921344 811636151680 954866060800 1014545189600 1193582576000 1268181487000 1623272303360 2029090379200 2387165152000 2536362974000 3246544606720 4058180758400 4774330304000 5072725948000 8116361516800 10145451896000 16232723033600 20290903792000 40581807584000 81163615168000
• Sum of all divisors σ(n): 216991961911296
• Sum of proper divisors (its aliquot sum) s(n): 135828346743296
• 81163615168000 is an abundant number, because the sum of its proper divisors (135828346743296) is greater than itself. Its abundance is 54664731575296

Bases of 81163615168000

• Binary: 10010011101000101100000011100110110011000000000₂
• Hexadecimal: 0x49D160736600
• Base-36: SRQ1SVZLS

Squares and roots of 81163615168000

• 81163615168000 squared (81163615168000²) is 6587532427139199668224000000
• 81163615168000 cubed (81163615168000³) is 534667946823047001039246014021632000000000
• The square root of 81163615168000 is 9009085.1460067797
• The cube root of 81163615168000 is 43296.6000968023

Scales and comparisons

• 81,163,615,168,000 seconds is equal to 2,580,751 years, 47 weeks, 1 day, 1 hour, 46 minutes, 40 seconds.
• To count from 1 to 81,163,615,168,000 would take you about six million, four hundred fifty-one thousand, eight hundred seventy-nine 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 81163615168000 cubic inches would be around 3608.1 feet tall.

Recreational maths with 81163615168000

• 81163615168000 backwards is 00086151636118
• The number of decimal digits it has is: 14
• The sum of 81163615168000's digits is 46
• More coming soon!