138849869515

Names of 138849869515

• Cardinal: 138849869515 can be written as One hundred thirty-eight billion, eight hundred forty-nine million, eight hundred sixty-nine thousand, five hundred fifteen.

Scientific notation

• Scientific notation: 1.38849869515 × 10¹¹

Factors of 138849869515

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 191

Divisors of 138849869515

• Number of divisors d(n): 80
• Complete list of divisors:
  1 5 7 29 35 71 79 145 203 355 395 497 553 841 1015 2059 2291 2485 2765 4205 5609 5887 10295 11455 14413 16037 24389 28045 29435 39263 59711 66439 72065 80185 121945 162661 170723 196315 298555 332195 417977 465073 707281 813305 853615 1138627 1731619 1926731 2089885 2325365 3536405 4717169 4950967 5693135 8658095 9633655 12121333 13487117 23585845 24754835 33020183 50216951 55875199 60606665 67435585 136797901 165100915 251084755 279375995 351518657 391126393 683989505 957585307 1757593285 1955631965 3967139129 4787926535 19835695645 27769973903 138849869515
• Sum of all divisors σ(n): 202532935680
• Sum of proper divisors (its aliquot sum) s(n): 63683066165
• 138849869515 is a deficient number, because the sum of its proper divisors (63683066165) is less than itself. Its deficiency is 75166803350

Bases of 138849869515

• Binary: 10000001010100000110001101111011001011₂
• Hexadecimal: 0x205418DECB
• Base-36: 1RSBMKZV

Squares and roots of 138849869515

• 138849869515 squared (138849869515²) is 19279286264332526335225
• 138849869515 cubed (138849869515³) is 2676926382144903080216292398165875
• The square root of 138849869515 is 372625.6425891809
• The cube root of 138849869515 is 5178.2358287661

Scales and comparisons

• 138,849,869,515 seconds is equal to 4,414 years, 51 weeks, 5 days, 16 hours, 11 minutes, 55 seconds.
• To count from 1 to 138,849,869,515 would take you about eight thousand, eight hundred twenty-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 138849869515 cubic inches would be around 431.5 feet tall.

Recreational maths with 138849869515

• 138849869515 backwards is 515968948831
• The number of decimal digits it has is: 12
• The sum of 138849869515's digits is 67
• More coming soon!