138474688155

Names of 138474688155

• Cardinal: 138474688155 can be written as One hundred thirty-eight billion, four hundred seventy-four million, six hundred eighty-eight thousand, one hundred fifty-five.

Scientific notation

• Scientific notation: 1.38474688155 × 10¹¹

Factors of 138474688155

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 5948

Divisors of 138474688155

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 15 43 61 129 183 215 305 645 683 915 2049 2623 3415 5153 7869 10245 13115 15459 25765 29369 39345 41663 77295 88107 124989 146845 208315 221579 314333 440535 624945 664737 942999 1107895 1571665 1791509 3323685 3519499 4714995 5374527 8957545 10558497 13516319 17597495 26872635 40548957 52792485 67581595 151338457 202744785 214689439 454015371 644068317 756692285 1073447195 2270076855 3220341585 9231645877 27694937631 46158229385 138474688155
• Sum of all divisors σ(n): 230810798592
• Sum of proper divisors (its aliquot sum) s(n): 92336110437
• 138474688155 is a deficient number, because the sum of its proper divisors (92336110437) is less than itself. Its deficiency is 46138577718

Bases of 138474688155

• Binary: 10000000111101101111000000111010011011₂
• Hexadecimal: 0x203DBC0E9B
• Base-36: 1RM4957F

Squares and roots of 138474688155

• 138474688155 squared (138474688155²) is 19175239259624497304025
• 138474688155 cubed (138474688155³) is 2655285276774015346573500101323875
• The square root of 138474688155 is 372121.8727177965
• The cube root of 138474688155 is 5173.5676452189

Scales and comparisons

• 138,474,688,155 seconds is equal to 4,403 years, 3 weeks, 3 days, 7 hours, 9 minutes, 15 seconds.
• To count from 1 to 138,474,688,155 would take you about eight thousand, eight hundred six 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 138474688155 cubic inches would be around 431.1 feet tall.

Recreational maths with 138474688155

• 138474688155 backwards is 551886474831
• The number of decimal digits it has is: 12
• The sum of 138474688155's digits is 60
• More coming soon!