138479012972716751999

Names of 138479012972716751999

• Cardinal: 138479012972716751999 can be written as One hundred thirty-eight quintillion, four hundred seventy-nine quadrillion, twelve trillion, nine hundred seventy-two billion, seven hundred sixteen million, seven hundred fifty-one thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 1.38479012972716751999 × 10²⁰

Factors of 138479012972716751999

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 6885134

Divisors of 138479012972716751999

• Number of divisors d(n): 16
• Complete list of divisors:
  1 47 598057 917503 5369527 28108679 43122641 252367769 548719091671 3211283209039 4926557131081 25789797308537 150930310824833 231548185160807 2946361978142909617 138479012972716751999
• Sum of all divisors σ(n): 141425791906042871808
• Sum of proper divisors (its aliquot sum) s(n): 2946778933326119809
• 138479012972716751999 is a deficient number, because the sum of its proper divisors (2946778933326119809) is less than itself. Its deficiency is 135532234039390632190

Bases of 138479012972716751999

• Binary: 1111000000111001000010010001001101011111101011111011111110001111111₂
• Hexadecimal: 0x781C8489AFD7DFC7F
• Base-36: T83JT7PGIO0VZ

Squares and roots of 138479012972716751999

• 138479012972716751999 squared (138479012972716751999²) is 19176437033897854491518969595484070496001
• 138479012972716751999 cubed (138479012972716751999³) is 2655534072787626945431767772565719540839068382025637638255999
• The square root of 138479012972716751999 is 11767710608.8107363857
• The cube root of 138479012972716751999 is 5173621.5046507673

Scales and comparisons

• 138,479,012,972,716,751,999 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 138,479,012,972,716,751,999 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 138479012972716751999 cubic inches would be around 431135.1 feet tall.

Recreational maths with 138479012972716751999

• 138479012972716751999 backwards is 999157617279210974831
• The number of decimal digits it has is: 21
• The sum of 138479012972716751999's digits is 107
• More coming soon!