13878918999

Names of 13878918999

• Cardinal: 13878918999 can be written as Thirteen billion, eight hundred seventy-eight million, nine hundred eighteen thousand, nine hundred ninety-nine.

Scientific notation

• Scientific notation: 1.3878918999 × 10¹⁰

Factors of 13878918999

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 790

Divisors of 13878918999

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 11 19 27 33 57 81 99 171 209 243 297 361 513 627 757 891 1083 1539 1881 2271 2673 3249 3971 4617 5643 6813 6859 8327 9747 11913 14383 16929 20439 20577 24981 29241 35739 43149 50787 61317 61731 74943 75449 87723 107217 129447 158213 183951 185193 224829 226347 273277 321651 388341 474639 555579 674487 679041 819831 964953 1165023 1423917 1666737 2023461 2037123 2459493 3006047 3495069 4271751 5192263 6111369 7378479 9018141 12815253 15576789 18334107 22135437 27054423 38445759 46730367 57114893 66406311 81163269 140191101 171344679 243489807 420573303 514034037 730469421 1261719909 1542102111 4626306333 13878918999
• Sum of all divisors σ(n): 23971234560
• Sum of proper divisors (its aliquot sum) s(n): 10092315561
• 13878918999 is a deficient number, because the sum of its proper divisors (10092315561) is less than itself. Its deficiency is 3786603438

Bases of 13878918999

• Binary: 1100111011001111110111111101010111₂
• Hexadecimal: 0x33B3F7F57
• Base-36: 6DJ5EFR

Squares and roots of 13878918999

• 13878918999 squared (13878918999²) is 192624392580803162001
• 13878918999 cubed (13878918999³) is 2673418341860543647774953756999
• The square root of 13878918999 is 117808.8239437097
• The cube root of 13878918999 is 2403.1739833911

Scales and comparisons

• 13,878,918,999 seconds is equal to 441 years, 15 weeks, 6 days, 15 hours, 16 minutes, 39 seconds.
• To count from 1 to 13,878,918,999 would take you about eight hundred eighty-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 13878918999 cubic inches would be around 200.3 feet tall.

Recreational maths with 13878918999

• 13878918999 backwards is 99981987831
• The number of decimal digits it has is: 11
• The sum of 13878918999's digits is 72
• More coming soon!