13107978

Names of 13107978

• Cardinal: 13107978 can be written as Thirteen million, one hundred seven thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 1.3107978 × 10⁷

Factors of 13107978

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 188

Divisors of 13107978

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 13 18 26 31 39 62 78 93 117 139 169 186 234 278 279 338 403 417 507 558 806 834 1014 1209 1251 1521 1807 2418 2502 3042 3614 3627 4309 5239 5421 7254 8618 10478 10842 12927 15717 16263 23491 25854 31434 32526 38781 46982 47151 56017 70473 77562 94302 112034 140946 168051 211419 336102 422838 504153 728221 1008306 1456442 2184663 4369326 6553989 13107978
• Sum of all divisors σ(n): 31973760
• Sum of proper divisors (its aliquot sum) s(n): 18865782
• 13107978 is an abundant number, because the sum of its proper divisors (18865782) is greater than itself. Its abundance is 5757804

Bases of 13107978

• Binary: 110010000000001100001010₂
• Hexadecimal: 0xC8030A
• Base-36: 7SY6I

Squares and roots of 13107978

• 13107978 squared (13107978²) is 171819087248484
• 13107978 cubed (13107978³) is 2252200815633208805352
• The square root of 13107978 is 3620.4941651659
• The cube root of 13107978 is 235.7826808215

Scales and comparisons

• 13,107,978 seconds is equal to 21 weeks, 4 days, 17 hours, 6 minutes, 18 seconds.
• To count from 1 to 13,107,978 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 13107978 cubic inches would be around 19.6 feet tall.

Recreational maths with 13107978

• 13107978 backwards is 87970131
• The number of decimal digits it has is: 8
• The sum of 13107978's digits is 36
• More coming soon!