138399108816

Names of 138399108816

• Cardinal: 138399108816 can be written as One hundred thirty-eight billion, three hundred ninety-nine million, one hundred eight thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.38399108816 × 10¹¹

Factors of 138399108816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 60670

Divisors of 138399108816

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 12 16 17 24 34 48 51 68 102 136 204 272 408 816 2939 5878 8817 11756 17634 23512 35268 47024 49963 57709 70536 99926 115418 141072 149889 173127 199852 230836 299778 346254 399704 461672 599556 692508 799408 923344 981053 1199112 1385016 1962106 2398224 2770032 2943159 3924212 5886318 7848424 11772636 15696848 23545272 47090544 169606751 339213502 508820253 678427004 1017640506 1356854008 2035281012 2713708016 2883314767 4070562024 5766629534 8141124048 8649944301 11533259068 17299888602 23066518136 34599777204 46133036272 69199554408 138399108816
• Sum of all divisors σ(n): 378697636800
• Sum of proper divisors (its aliquot sum) s(n): 240298527984
• 138399108816 is an abundant number, because the sum of its proper divisors (240298527984) is greater than itself. Its abundance is 101899419168

Bases of 138399108816

• Binary: 10000000111001001110101100111011010000₂
• Hexadecimal: 0x20393ACED0
• Base-36: 1RKV97TC

Squares and roots of 138399108816

• 138399108816 squared (138399108816²) is 19154313321063008921856
• 138399108816 cubed (138399108816³) is 2650939893617557716568327384682496
• The square root of 138399108816 is 372020.3069941209
• The cube root of 138399108816 is 5172.6262313327

Scales and comparisons

• 138,399,108,816 seconds is equal to 4,400 years, 34 weeks, 3 days, 12 hours, 53 minutes, 36 seconds.
• To count from 1 to 138,399,108,816 would take you about eight thousand, eight hundred one 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 138399108816 cubic inches would be around 431.1 feet tall.

Recreational maths with 138399108816

• 138399108816 backwards is 618801993831
• The number of decimal digits it has is: 12
• The sum of 138399108816's digits is 57
• More coming soon!