15138838912

Names of 15138838912

• Cardinal: 15138838912 can be written as Fifteen billion, one hundred thirty-eight million, eight hundred thirty-eight thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.5138838912 × 10¹⁰

Factors of 15138838912

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2064

Divisors of 15138838912

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 8 16 17 29 32 34 58 64 68 116 127 128 136 232 254 272 464 493 508 544 928 986 1016 1088 1856 1889 1972 2032 2159 2176 3683 3712 3778 3944 4064 4318 7366 7556 7888 8128 8636 14732 15112 15776 16256 17272 29464 30224 31552 32113 34544 54781 58928 60448 62611 63104 64226 69088 109562 117856 120896 125222 128452 138176 219124 235712 239903 241792 250444 256904 276352 438248 471424 479806 500888 513808 876496 931277 959612 1001776 1027616 1752992 1862554 1919224 2003552 2055232 3505984 3725108 3838448 4007104 4078351 4110464 6957187 7011968 7450216 7676896 8014208 8156702 13914374 14900432 15353792 16313404 27828748 29800864 30707584 32626808 55657496 59601728 65253616 111314992 118272179 119203456 130507232 222629984 236544358 261014464 445259968 473088716 522028928 890519936 946177432 1892354864 3784709728 7569419456 15138838912
• Sum of all divisors σ(n): 33312384000
• Sum of proper divisors (its aliquot sum) s(n): 18173545088
• 15138838912 is an abundant number, because the sum of its proper divisors (18173545088) is greater than itself. Its abundance is 3034706176

Bases of 15138838912

• Binary: 1110000110010110000101100110000000₂
• Hexadecimal: 0x386585980
• Base-36: 6YD9UV4

Squares and roots of 15138838912

• 15138838912 squared (15138838912²) is 229184443603485343744
• 15138838912 cubed (15138838912³) is 3469586372849513420693362966528
• The square root of 15138838912 is 123039.9890767225
• The cube root of 15138838912 is 2473.7977448023

Scales and comparisons

• 15,138,838,912 seconds is equal to 481 years, 19 weeks, 1 day, 1 hour, 1 minute, 52 seconds.
• To count from 1 to 15,138,838,912 would take you about nine hundred sixty-two 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 15138838912 cubic inches would be around 206.1 feet tall.

Recreational maths with 15138838912

• 15138838912 backwards is 21983883151
• The number of decimal digits it has is: 11
• The sum of 15138838912's digits is 49
• More coming soon!