138765931941

Names of 138765931941

• Cardinal: 138765931941 can be written as One hundred thirty-eight billion, seven hundred sixty-five million, nine hundred thirty-one thousand, nine hundred forty-one.

Scientific notation

• Scientific notation: 1.38765931941 × 10¹¹

Factors of 138765931941

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 60

Divisors of 138765931941

• Number of divisors d(n): 84
• Complete list of divisors:
  1 3 7 13 21 37 39 91 111 169 259 273 481 507 777 1183 1369 1443 2197 3367 3549 4107 6253 6591 9583 10101 15379 17797 18759 28561 28749 43771 46137 53391 81289 85683 124579 131313 199927 231361 243867 371293 373737 569023 599781 694083 1056757 1113879 1619527 1707069 2599051 3007693 3170271 4826809 4858581 7397299 7797153 9023079 13737841 14480427 21053851 22191897 33787663 39100009 41213523 63161553 96164887 101362989 117300027 178591933 273700063 288494661 508300117 535775799 821100189 1250143531 1524900351 3558100819 3750430593 6607901521 10674302457 19823704563 46255310647 138765931941
• Sum of all divisors σ(n): 235432432032
• Sum of proper divisors (its aliquot sum) s(n): 96666500091
• 138765931941 is a deficient number, because the sum of its proper divisors (96666500091) is less than itself. Its deficiency is 42099431850

Bases of 138765931941

• Binary: 10000001001111000110000001010110100101₂
• Hexadecimal: 0x204F1815A5
• Base-36: 1RQXNICL

Squares and roots of 138765931941

• 138765931941 squared (138765931941²) is 19255983867454244027481
• 138765931941 cubed (138765931941³) is 2672074546808149591649034179670621
• The square root of 138765931941 is 372512.9956672653
• The cube root of 138765931941 is 5177.1921687597

Scales and comparisons

• 138,765,931,941 seconds is equal to 4,412 years, 17 weeks, 4 hours, 12 minutes, 21 seconds.
• To count from 1 to 138,765,931,941 would take you about eight thousand, eight hundred twenty-four 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 138765931941 cubic inches would be around 431.4 feet tall.

Recreational maths with 138765931941

• 138765931941 backwards is 149139567831
• The number of decimal digits it has is: 12
• The sum of 138765931941's digits is 57
• More coming soon!