138397967350316253981

Names of 138397967350316253981

• Cardinal: 138397967350316253981 can be written as One hundred thirty-eight quintillion, three hundred ninety-seven quadrillion, nine hundred sixty-seven trillion, three hundred fifty billion, three hundred sixteen million, two hundred fifty-three thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 1.38397967350316253981 × 10²⁰

Factors of 138397967350316253981

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 813

Divisors of 138397967350316253981

• Number of divisors d(n): 100
• Complete list of divisors:
  1 3 9 27 81 389 421 1167 1263 3501 3789 10503 11367 31509 34101 151321 163769 177241 453963 491307 531723 1361889 1473921 1595169 4085667 4421763 4785507 12257001 13265289 14356521 58863869 63706141 68946749 74618461 176591607 191118423 206840247 223855383 529774821 573355269 620520741 671566149 1589324463 1720065807 1861562223 2014698447 4767973389 5160197421 5584686669 6044095341 22898045041 24781688849 26820285361 29026581329 68694135123 74345066547 80460856083 87079743987 206082405369 223035199641 241382568249 261239231961 618247216107 669105598923 724147704747 783717695883 1854741648321 2007316796769 2172443114241 2351153087649 9640076962261 10433091005429 11291340136981 28920230886783 31299273016287 33874020410943 86760692660349 93897819048861 101622061232829 260282077981047 281693457146583 304866183698487 780846233943141 845080371439749 914598551095461 4058472401111881 4392331313285609 12175417203335643 13176993939856827 36526251610006929 39530981819570481 109578754830020787 118592945458711443 328736264490062361 355778836376134329 1708616880868101901 5125850642604305703 15377551927812917109 46132655783438751327 138397967350316253981
• Sum of all divisors σ(n): 207768997498943793484
• Sum of proper divisors (its aliquot sum) s(n): 69371030148627539503
• 138397967350316253981 is a deficient number, because the sum of its proper divisors (69371030148627539503) is less than itself. Its deficiency is 69026937201688714478

Bases of 138397967350316253981

• Binary: 1111000000010101000010110100000101010001111101101011100001100011101₂
• Hexadecimal: 0x780A85A0A8FB5C31D
• Base-36: T7HDSXSIPDCT9

Squares and roots of 138397967350316253981

• 138397967350316253981 squared (138397967350316253981²) is 19153997366699203838773591057280498348361
• 138397967350316253981 cubed (138397967350316253981³) is 2650874302184479918068864259231301020537725560649683091075141
• The square root of 138397967350316253981 is 11764266545.3616892275
• The cube root of 138397967350316253981 is 5172612.0106448527

Scales and comparisons

• 138,397,967,350,316,253,981 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,397,967,350,316,253,981 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 138397967350316253981 cubic inches would be around 431051 feet tall.

Recreational maths with 138397967350316253981

• 138397967350316253981 backwards is 189352613053769793831
• The number of decimal digits it has is: 21
• The sum of 138397967350316253981's digits is 99
• More coming soon!