81230550365407872

Names of 81230550365407872

• Cardinal: 81230550365407872 can be written as Eighty-one quadrillion, two hundred thirty trillion, five hundred fifty billion, three hundred sixty-five million, four hundred seven thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 8.1230550365407872 × 10¹⁶

Factors of 81230550365407872

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 110598

Divisors of 81230550365407872

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 16 22 24 26 32 33 39 44 48 52 64 66 78 88 96 104 121 128 132 143 156 176 192 208 242 264 286 312 352 363 384 416 429 484 528 572 624 704 726 832 858 968 1056 1144 1248 1331 1408 1452 1573 1664 1716 1936 2112 2288 2496 2662 2904 3146 3432 3872 3993 4224 4576 4719 4992 5324 5808 6292 6864 7744 7986 9152 9438 10648 11616 12584 13728 15488 15972 17303 18304 18876 21296 23232 25168 27456 31944 34606 37752 42592 46464 50336 51909 54912 63888 69212 75504 85184 100672 103818 110569 127776 138424 151008 170368 201344 207636 221138 255552 276848 302016 331707 415272 442276 511104 553696 604032 663414 830544 884552 1107392 1216259 1326828 1437397 1661088 1769104 2214784 2432518 2653656 2874794 3322176 3538208 3648777 4312191 4865036 5307312 5749588 6644352 7076416 7297554 8624382 9730072 10614624 11499176 13378849 14152832 14595108 15811367 17248764 19460144 21229248 22998352 26757698 29190216 31622734 34497528 38920288 40136547 42458496 45996704 47434101 53515396 58380432 63245468 68995056 77840576 80273094 91993408 94868202 107030792 116760864 126490936 137990112 147167339 155681152 160546188 173925037 183986816 189736404 214061584 233521728 252981872 275980224 294334678 321092376 347850074 379472808 428123168 441502017 467043456 505963744 521775111 551960448 588669356 642184752 695700148 758945616 856246336 883004034 1011927488 1043550222 1177338712 1284369504 1391400296 1517891232 1712492672 1766008068 1913175407 2023854976 2087100444 2354677424 2568739008 2782800592 3035782464 3532016136 3826350814 4174200888 4709354848 5137478016 5565601184 5739526221 6071564928 7064032272 7652701628 8348401776 9418709696 11131202368 11479052442 12225503761 14128064544 15305403256 16696803552 18837419392 22262404736 22958104884 24451007522 28256129088 30610806512 33393607104 36676511283 45916209768 48902015044 56512258176 61221613024 66787214208 73353022566 91832419536 97804030088 122443226048 134480541371 146706045132 158931548893 183664839072 195608060176 244886452096 268961082742 293412090264 317863097786 367329678144 391216120352 403441624113 476794646679 537922165484 586824180528 635726195572 734659356288 782432240704 806883248226 953589293358 1075844330968 1173648361056 1271452391144 1479285955081 1564864481408 1613766496452 1748247037823 1907178586716 2151688661936 2347296722112 2542904782288 2958571910162 3227532992904 3496494075646 3814357173432 4303377323872 4437857865243 4694593444224 5085809564576 5244741113469 5917143820324 6455065985808 6992988151292 7628714346864 8606754647744 8875715730486 10171619129152 10489482226938 11834287640648 12910131971616 13985976302584 15257428693728 16272145505891 17213509295488 17751431460972 19230717416053 20343238258304 20978964453876 23668575281296 25820263943232 27971952605168 30514857387456 32544291011782 35502862921944 38461434832106 41957928907752 47337150562592 48816436517673 51640527886464 55943905210336 57692152248159 61029714774912 65088582023564 71005725843888 76922869664212 83915857815504 94674301125184 97632873035346 111887810420672 115384304496318 130177164047128 142011451687776 153845739328424 167831715631008 189348602250368 195265746070692 211537891576583 223775620841344 230768608992636 260354328094256 284022903375552 307691478656848 335663431262016 390531492141384 423075783153166 461537217985272 520708656188512 568045806751104 615382957313696 634613674729749 671326862524032 781062984282768 846151566306332 923074435970544 1041417312377024 1230765914627392 1269227349459498 1562125968565536 1692303132612664 1846148871941088 2082834624754048 2461531829254784 2538454698918996 3124251937131072 3384606265225328 3692297743882176 5076909397837992 6248503874262144 6769212530450656 7384595487764352 10153818795675984 13538425060901312 20307637591351968 27076850121802624 40615275182703936 81230550365407872
• Sum of all divisors σ(n): 255587715154739520
• Sum of proper divisors (its aliquot sum) s(n): 174357164789331648
• 81230550365407872 is an abundant number, because the sum of its proper divisors (174357164789331648) is greater than itself. Its abundance is 93126614423923776

Bases of 81230550365407872

• Binary: 100100000100101101100000101010011011100001000101010000000₂
• Hexadecimal: 0x12096C153708A80
• Base-36: M7TTRO8WL1C

Squares and roots of 81230550365407872

• 81230550365407872 squared (81230550365407872²) is 6598402312667064967302112919568384
• 81230550365407872 cubed (81230550365407872³) is 535991851390325801851233502806260257974390355918848
• The square root of 81230550365407872 is 285009737.3168290053
• The cube root of 81230550365407872 is 433084.9898425363

Scales and comparisons

• 81,230,550,365,407,872 seconds is equal to 2,582,880,239 years, 1 week, 4 days, 51 minutes, 12 seconds.
• To count from 1 to 81,230,550,365,407,872 would take you about seven billion, seven hundred forty-eight million, six hundred forty thousand, seven hundred seventeen 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 81230550365407872 cubic inches would be around 36090.4 feet tall.

Recreational maths with 81230550365407872

• 81230550365407872 backwards is 27870456305503218
• 81230550365407872 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 81230550365407872's digits is 66
• More coming soon!