13538145816

Names of 13538145816

• Cardinal: 13538145816 can be written as Thirteen billion, five hundred thirty-eight million, one hundred forty-five thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.3538145816 × 10¹⁰

Factors of 13538145816

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 4496

Divisors of 13538145816

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 104 108 117 156 216 234 312 351 468 702 936 1404 1801 2677 2808 3602 5354 5403 7204 8031 10708 10806 14408 16062 16209 21416 21612 23413 24093 32124 32418 34801 43224 46826 48186 48627 64248 64836 69602 70239 72279 93652 96372 97254 104403 129672 139204 140478 144558 187304 192744 194508 208806 210717 278408 280956 289116 313209 389016 417612 421434 561912 578232 626418 632151 835224 842868 939627 1252836 1264302 1685736 1879254 2505672 2528604 3758508 4821277 5057208 7517016 9642554 14463831 19285108 28927662 38570216 43391493 57855324 62676601 86782986 115710648 125353202 130174479 173565972 188029803 250706404 260348958 347131944 376059606 501412808 520697916 564089409 752119212 1041395832 1128178818 1504238424 1692268227 2256357636 3384536454 4512715272 6769072908 13538145816
• Sum of all divisors σ(n): 40536350400
• Sum of proper divisors (its aliquot sum) s(n): 26998204584
• 13538145816 is an abundant number, because the sum of its proper divisors (26998204584) is greater than itself. Its abundance is 13460058768

Bases of 13538145816

• Binary: 1100100110111011111011011000011000₂
• Hexadecimal: 0x326EFB618
• Base-36: 67W9G60

Squares and roots of 13538145816

• 13538145816 squared (13538145816²) is 183281392135278305856
• 13538145816 cubed (13538145816³) is 2481290212086873302419974698496
• The square root of 13538145816 is 116353.5380467651
• The cube root of 13538145816 is 2383.3421618379

Scales and comparisons

• 13,538,145,816 seconds is equal to 430 years, 24 weeks, 3 days, 12 hours, 3 minutes, 36 seconds.
• To count from 1 to 13,538,145,816 would take you about eight hundred sixty 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 13538145816 cubic inches would be around 198.6 feet tall.

Recreational maths with 13538145816

• 13538145816 backwards is 61854183531
• The number of decimal digits it has is: 11
• The sum of 13538145816's digits is 45
• More coming soon!