81789638514310467

Names of 81789638514310467

• Cardinal: 81789638514310467 can be written as Eighty-one quadrillion, seven hundred eighty-nine trillion, six hundred thirty-eight billion, five hundred fourteen million, three hundred ten thousand, four hundred sixty-seven.

Scientific notation

• Scientific notation: 8.1789638514310467 × 10¹⁶

Factors of 81789638514310467

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 398

Divisors of 81789638514310467

• Number of divisors d(n): 216
• Complete list of divisors:
  1 3 9 13 23 39 69 117 169 207 299 359 507 529 897 1077 1521 1587 2197 2691 3231 3887 4667 4761 6591 6877 8257 11661 14001 19773 20631 24771 28561 34983 42003 50531 60671 61893 74313 85683 89401 107341 128881 151593 182013 189911 257049 268203 322023 371293 386643 454779 546039 569733 656903 788723 804609 966069 1113879 1159929 1162213 1395433 1675453 1709199 1970709 2366169 2468843 2964263 3341637 3486639 4186299 5026359 5912127 7098507 7406529 8539739 8892789 10253399 10459917 12558897 15079077 15108769 18140629 21780889 22219587 25619217 26678367 30760197 32094959 38535419 45326307 46268279 54421887 65342667 68178049 76857651 92280591 96284877 115606257 133294187 135978921 138804837 163265661 196028001 196413997 204534147 235828177 283151557 288854631 346818771 399882561 416414511 417234467 500960447 589241991 601487627 613602441 707484531 849454671 886314637 1064170417 1199647683 1251703401 1502881341 1767725973 1804462881 2122453593 2548364013 2658943911 3065766301 3192511251 3680970241 3755110203 4508644023 5413388643 5424048071 6512485811 7819339151 7976831733 9197298903 9577533753 11042910723 11522090281 13834215421 16272144213 19537457433 23458017453 24475919591 27591896709 33128732169 34566270843 41502646263 47852613133 48816432639 58612372299 70374052359 70512624923 73427758773 84662315543 101651408963 103698812529 124507938789 143557839399 149787173653 179844800473 211537874769 220283276319 253986946629 304954226889 318186954683 430673518197 449361520959 539534401419 634613624307 761960839887 914862680667 954560864049 1100610102059 1321468316519 1348084562877 1618603204257 1947233257489 2337982406149 2863682592147 3301830306177 3964404949557 4136430410879 5841699772467 7013947218447 9905490918531 11893214848671 12409291232637 17179088114747 17525099317401 21041841655341 25314032347357 30393771279937 37227873697911 51537264344241 53773595341427 75942097042071 91181313839811 154611793032723 161320786024281 227826291126213 273543941519433 395119026639181 483962358072843 699056739438551 1185357079917543 2097170218315653 3556071239752629 6291510654946959 9087737612701163 27263212838103489 81789638514310467
• Sum of all divisors σ(n): 134165863169039520
• Sum of proper divisors (its aliquot sum) s(n): 52376224654729053
• 81789638514310467 is a deficient number, because the sum of its proper divisors (52376224654729053) is less than itself. Its deficiency is 29413413859581414

Bases of 81789638514310467

• Binary: 100100010100100110011111000101101111100111111110101000011₂
• Hexadecimal: 0x122933E2DF3FD43
• Base-36: MDC0981J7ER

Squares and roots of 81789638514310467

• 81789638514310467 squared (81789638514310467²) is 6689544968301578095597148465758089
• 81789638514310467 cubed (81789638514310467³) is 547135464782610543932304994030149566174158262617563
• The square root of 81789638514310467 is 285988878.3052768767
• The cube root of 81789638514310467 is 434076.3216634473

Scales and comparisons

• 81,789,638,514,310,467 seconds is equal to 2,600,657,512 years, 41 weeks, 1 day, 8 hours, 54 minutes, 27 seconds.
• To count from 1 to 81,789,638,514,310,467 would take you about seven billion, eight hundred one million, nine hundred seventy-two thousand, five hundred thirty-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 81789638514310467 cubic inches would be around 36173 feet tall.

Recreational maths with 81789638514310467

• 81789638514310467 backwards is 76401341583698718
• The number of decimal digits it has is: 17
• The sum of 81789638514310467's digits is 81
• More coming soon!