138856019746809212008

Names of 138856019746809212008

• Cardinal: 138856019746809212008 can be written as One hundred thirty-eight quintillion, eight hundred fifty-six quadrillion, nineteen trillion, seven hundred forty-six billion, eight hundred nine million, two hundred twelve thousand and eight.

Scientific notation

• Scientific notation: 1.38856019746809212008 × 10²⁰

Factors of 138856019746809212008

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 2479571781193021652

Divisors of 138856019746809212008

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 4 7 8 14 28 56 2479571781193021643 4959143562386043286 9918287124772086572 17357002468351151501 19836574249544173144 34714004936702303002 69428009873404606004 138856019746809212008
• Sum of all divisors σ(n): 297548613743162597280
• Sum of proper divisors (its aliquot sum) s(n): 158692593996353385272
• 138856019746809212008 is an abundant number, because the sum of its proper divisors (158692593996353385272) is greater than itself. Its abundance is 19836574249544173264

Bases of 138856019746809212008

• Binary: 1111000011100000011101011100100010011011101001100000110110001101000₂
• Hexadecimal: 0x78703AE44DD306C68
• Base-36: TAYNYYMHYVAEG

Squares and roots of 138856019746809212008

• 138856019746809212008 squared (138856019746809212008²) is 19280994219926269821639751444009891392064
• 138856019746809212008 cubed (138856019746809212008³) is 2677282114140196401066676155022288397674382355480978024704512
• The square root of 138856019746809212008 is 11783718417.6646554833
• The cube root of 138856019746809212008 is 5178312.2827582057

Scales and comparisons

• 138,856,019,746,809,212,008 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,856,019,746,809,212,008 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 138856019746809212008 cubic inches would be around 431526 feet tall.

Recreational maths with 138856019746809212008

• 138856019746809212008 backwards is 800212908647910658831
• The number of decimal digits it has is: 21
• The sum of 138856019746809212008's digits is 88
• More coming soon!