15138917808

Names of 15138917808

• Cardinal: 15138917808 can be written as Fifteen billion, one hundred thirty-eight million, nine hundred seventeen thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.5138917808 × 10¹⁰

Factors of 15138917808

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1047876

Divisors of 15138917808

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 42 43 48 56 84 86 112 129 168 172 258 301 336 344 516 602 688 903 1032 1204 1806 2064 2408 3612 4816 7224 14448 1047821 2095642 3143463 4191284 6286926 7334747 8382568 12573852 14669494 16765136 22004241 25147704 29338988 44008482 45056303 50295408 58677976 88016964 90112606 117355952 135168909 176033928 180225212 270337818 315394121 352067856 360450424 540675636 630788242 720900848 946182363 1081351272 1261576484 1892364726 2162702544 2523152968 3784729452 5046305936 7569458904 15138917808
• Sum of all divisors σ(n): 45735334656
• Sum of proper divisors (its aliquot sum) s(n): 30596416848
• 15138917808 is an abundant number, because the sum of its proper divisors (30596416848) is greater than itself. Its abundance is 15457499040

Bases of 15138917808

• Binary: 1110000110010110011000110110110000₂
• Hexadecimal: 0x386598DB0
• Base-36: 6YDBJQO

Squares and roots of 15138917808

• 15138917808 squared (15138917808²) is 229186832397379524864
• 15138917808 cubed (15138917808³) is 3469640618339800221498188378112
• The square root of 15138917808 is 123040.3096875167
• The cube root of 15138917808 is 2473.8020421905

Scales and comparisons

• 15,138,917,808 seconds is equal to 481 years, 19 weeks, 1 day, 22 hours, 56 minutes, 48 seconds.
• To count from 1 to 15,138,917,808 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 15138917808 cubic inches would be around 206.2 feet tall.

Recreational maths with 15138917808

• 15138917808 backwards is 80871983151
• The number of decimal digits it has is: 11
• The sum of 15138917808's digits is 51
• More coming soon!