138515631

Names of 138515631

• Cardinal: 138515631 can be written as One hundred thirty-eight million, five hundred fifteen thousand, six hundred thirty-one.

Scientific notation

• Scientific notation: 1.38515631 × 10⁸

Factors of 138515631

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 337161

Divisors of 138515631

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 137 411 337021 1011063 46171877 138515631
• Sum of all divisors σ(n): 186036144
• Sum of proper divisors (its aliquot sum) s(n): 47520513
• 138515631 is a deficient number, because the sum of its proper divisors (47520513) is less than itself. Its deficiency is 90995118

Bases of 138515631

• Binary: 1000010000011001010010101111₂
• Hexadecimal: 0x84194AF
• Base-36: 2AGVCF

Squares and roots of 138515631

• 138515631 squared (138515631²) is 19186580031328161
• 138515631 cubed (138515631³) is 2657641239771419988984591
• The square root of 138515631 is 11769.2663747575
• The cube root of 138515631 is 517.4077484979

Scales and comparisons

• 138,515,631 seconds is equal to 4 years, 21 weeks, 4 hours, 33 minutes, 51 seconds.
• To count from 1 to 138,515,631 would take you about 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 138515631 cubic inches would be around 43.1 feet tall.

Recreational maths with 138515631

• 138515631 backwards is 136515831
• The number of decimal digits it has is: 9
• The sum of 138515631's digits is 33
• More coming soon!