13145916

Names of 13145916

• Cardinal: 13145916 can be written as Thirteen million, one hundred forty-five thousand, nine hundred sixteen.

Scientific notation

• Scientific notation: 1.3145916 × 10⁷

Factors of 13145916

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 374

Divisors of 13145916

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 12 14 21 28 42 49 79 84 98 147 158 196 237 283 294 316 474 553 566 588 849 948 1106 1132 1659 1698 1981 2212 3318 3396 3871 3962 5943 6636 7742 7924 11613 11886 13867 15484 22357 23226 23772 27734 41601 44714 46452 55468 67071 83202 89428 134142 156499 166404 268284 312998 469497 625996 938994 1095493 1877988 2190986 3286479 4381972 6572958 13145916
• Sum of all divisors σ(n): 36261120
• Sum of proper divisors (its aliquot sum) s(n): 23115204
• 13145916 is an abundant number, because the sum of its proper divisors (23115204) is greater than itself. Its abundance is 9969288

Bases of 13145916

• Binary: 110010001001011100111100₂
• Hexadecimal: 0xC8973C
• Base-36: 7TRGC

Squares and roots of 13145916

• 13145916 squared (13145916²) is 172815107479056
• 13145916 cubed (13145916³) is 2271812886450641935296
• The square root of 13145916 is 3625.7297196565
• The cube root of 13145916 is 236.0099344663

Scales and comparisons

• 13,145,916 seconds is equal to 21 weeks, 5 days, 3 hours, 38 minutes, 36 seconds.
• To count from 1 to 13,145,916 would take you about thirty-two weeks!

  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 13145916 cubic inches would be around 19.7 feet tall.

Recreational maths with 13145916

• 13145916 backwards is 61954131
• The number of decimal digits it has is: 8
• The sum of 13145916's digits is 30
• More coming soon!