13151808

Names of 13151808

• Cardinal: 13151808 can be written as Thirteen million, one hundred fifty-one thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.3151808 × 10⁷

Factors of 13151808

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 107

Divisors of 13151808

• Number of divisors d(n): 140
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 43 48 54 59 64 72 81 86 96 108 118 129 144 162 172 177 192 216 236 258 288 324 344 354 387 432 472 516 531 576 648 688 708 774 864 944 1032 1062 1161 1296 1376 1416 1548 1593 1728 1888 2064 2124 2322 2537 2592 2752 2832 3096 3186 3483 3776 4128 4248 4644 4779 5074 5184 5664 6192 6372 6966 7611 8256 8496 9288 9558 10148 11328 12384 12744 13932 15222 16992 18576 19116 20296 22833 24768 25488 27864 30444 33984 37152 38232 40592 45666 50976 55728 60888 68499 74304 76464 81184 91332 101952 111456 121776 136998 152928 162368 182664 205497 222912 243552 273996 305856 365328 410994 487104 547992 730656 821988 1095984 1461312 1643976 2191968 3287952 4383936 6575904 13151808
• Sum of all divisors σ(n): 40568880
• Sum of proper divisors (its aliquot sum) s(n): 27417072
• 13151808 is an abundant number, because the sum of its proper divisors (27417072) is greater than itself. Its abundance is 14265264

Bases of 13151808

• Binary: 110010001010111001000000₂
• Hexadecimal: 0xC8AE40
• Base-36: 7TW00

Squares and roots of 13151808

• 13151808 squared (13151808²) is 172970053668864
• 13151808 cubed (13151808³) is 2274868935602594906112
• The square root of 13151808 is 3626.5421547253
• The cube root of 13151808 is 236.0451890869

Scales and comparisons

• 13,151,808 seconds is equal to 21 weeks, 5 days, 5 hours, 16 minutes, 48 seconds.
• To count from 1 to 13,151,808 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 13151808 cubic inches would be around 19.7 feet tall.

Recreational maths with 13151808

• 13151808 backwards is 80815131
• 13151808 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13151808's digits is 27
• More coming soon!