81164813309712

Names of 81164813309712

• Cardinal: 81164813309712 can be written as Eighty-one trillion, one hundred sixty-four billion, eight hundred thirteen million, three hundred nine thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 8.1164813309712 × 10¹³

Factors of 81164813309712

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 125

Divisors of 81164813309712

• Number of divisors d(n): 400
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 88 99 108 109 121 132 144 176 198 216 218 242 264 297 327 363 396 432 436 484 528 594 654 726 792 872 968 981 1089 1188 1199 1308 1331 1452 1584 1744 1936 1962 2178 2376 2398 2616 2662 2904 2943 3267 3597 3924 3993 4356 4752 4796 5232 5324 5808 5886 6534 7194 7848 7986 8712 9592 10648 10791 11772 11881 11979 13068 13189 14388 15696 15972 17424 19184 21296 21582 23544 23762 23958 26136 26378 28776 31944 32373 35643 35937 39567 43164 47088 47524 47916 52272 52756 57552 63888 64746 71286 71874 79134 86328 95048 95832 105512 106929 118701 129492 130691 142572 143748 145079 158268 172656 190096 191664 211024 213858 237402 258984 261382 285144 287496 290158 316536 320787 356103 392073 427716 435237 474804 517968 522764 570288 574992 580316 633072 641574 712206 784146 855432 870474 949608 1045528 1160632 1176219 1283148 1295029 1305711 1424412 1437601 1568292 1710864 1740948 1899216 2091056 2321264 2352438 2566296 2590058 2611422 2848824 2875202 3136584 3481896 3528657 3885087 3917133 4312803 4704876 5132592 5180116 5222844 5697648 5750404 6273168 6963792 7057314 7770174 7834266 8625606 9409752 10360232 10445688 11500808 11655261 12938409 14114628 14245319 15540348 15668532 15813611 17251212 18819504 20720464 20891376 23001616 23310522 25876818 28229256 28490638 31080696 31337064 31627222 34502424 34965783 38815227 42735957 46621044 47440833 51753636 56458512 56981276 62161392 62674128 63254444 69004848 69931566 77630454 85471914 93242088 94881666 103507272 113962552 126508888 128207871 139863132 141158161 142322499 155260908 156698509 170943828 186484176 189763332 207014544 227925104 253017776 256415742 279726264 282316322 284644998 310521816 313397018 341887656 379526664 384623613 423474483 426967497 470095527 512831484 559452528 564632644 569289996 621043632 626794036 683775312 759053328 769247226 846948966 853934994 940191054 1025662968 1129265288 1138579992 1253588072 1270423449 1410286581 1538494452 1552739771 1693897932 1707869988 1723683599 1880382108 2051325936 2258530576 2277159984 2507176144 2540846898 2820573162 3076988904 3105479542 3387795864 3415739976 3447367198 3760764216 3811270347 4230859743 4658219313 5081693796 5171050797 5641146324 6153977808 6210959084 6775591728 6831479952 6894734396 7521528432 7622540694 8461719486 9316438626 10163387592 10342101594 11282292648 12421918168 13789468792 13974657939 15245081388 15513152391 16923438972 17080137481 18632877252 20326775184 20684203188 22564585296 24843836336 27578937584 27949315878 30490162776 31026304782 33846877944 34160274962 37265754504 41368406376 41923973817 46539457173 51240412443 55898631756 60980325552 62052609564 67693755888 68320549924 74531509008 82736812752 83847947634 93078914346 102480824886 111797263512 124105219128 136641099848 153721237329 167695895268 186157828692 187881512291 204961649772 223594527024 248210438256 273282199696 307442474658 335391790536 372315657384 375763024582 409923299544 461163711987 563644536873 614884949316 670783581072 744631314768 751526049164 819846599088 922327423974 1127289073746 1229769898632 1503052098328 1690933610619 1844654847948 2254578147492 2459539797264 3006104196656 3381867221238 3689309695896 4509156294984 5072800831857 6763734442476 7378619391792 9018312589968 10145601663714 13527468884952 20291203327428 27054937769904 40582406654856 81164813309712
• Sum of all divisors σ(n): 258625590980160
• Sum of proper divisors (its aliquot sum) s(n): 177460777670448
• 81164813309712 is an abundant number, because the sum of its proper divisors (177460777670448) is greater than itself. Its abundance is 96295964360736

Bases of 81164813309712

• Binary: 10010011101000110100111110111011001011100010000₂
• Hexadecimal: 0x49D1A7DD9710
• Base-36: SRQLM8BO0

Squares and roots of 81164813309712

• 81164813309712 squared (81164813309712²) is 6587726919600402223633522944
• 81164813309712 cubed (81164813309712³) is 534691625564730760929278843766955130032128
• The square root of 81164813309712 is 9009151.6420644181
• The cube root of 81164813309712 is 43296.8131446777

Scales and comparisons

• 81,164,813,309,712 seconds is equal to 2,580,790 years, 1 day, 10 hours, 55 minutes, 12 seconds.
• To count from 1 to 81,164,813,309,712 would take you about six million, four hundred fifty-one thousand, nine hundred seventy-five 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 81164813309712 cubic inches would be around 3608.1 feet tall.

Recreational maths with 81164813309712

• 81164813309712 backwards is 21790331846118
• 81164813309712 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81164813309712's digits is 54
• More coming soon!