138796665

Names of 138796665

• Cardinal: 138796665 can be written as One hundred thirty-eight million, seven hundred ninety-six thousand, six hundred sixty-five.

Scientific notation

• Scientific notation: 1.38796665 × 10⁸

Factors of 138796665

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 577

Divisors of 138796665

• Number of divisors d(n): 64
• Complete list of divisors:
  1 3 5 7 15 21 35 49 53 105 147 159 245 265 343 371 509 735 795 1029 1113 1527 1715 1855 2545 2597 3563 5145 5565 7635 7791 10689 12985 17815 18179 24941 26977 38955 53445 54537 74823 80931 90895 124705 134885 174587 188839 272685 374115 404655 523761 566517 872935 944195 1321873 2618805 2832585 3965619 6609365 9253111 19828095 27759333 46265555 138796665
• Sum of all divisors σ(n): 264384000
• Sum of proper divisors (its aliquot sum) s(n): 125587335
• 138796665 is a deficient number, because the sum of its proper divisors (125587335) is less than itself. Its deficiency is 13209330

Bases of 138796665

• Binary: 1000010001011101111001111001₂
• Hexadecimal: 0x845DE79
• Base-36: 2AMW6X

Squares and roots of 138796665

• 138796665 squared (138796665²) is 19264514215122225
• 138796665 cubed (138796665³) is 2673850325904057397379625
• The square root of 138796665 is 11781.1996418021
• The cube root of 138796665 is 517.7574345195

Scales and comparisons

• 138,796,665 seconds is equal to 4 years, 21 weeks, 3 days, 10 hours, 37 minutes, 45 seconds.
• To count from 1 to 138,796,665 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 138796665 cubic inches would be around 43.1 feet tall.

Recreational maths with 138796665

• 138796665 backwards is 566697831
• The number of decimal digits it has is: 9
• The sum of 138796665's digits is 51
• More coming soon!