13681872

Names of 13681872

• Cardinal: 13681872 can be written as Thirteen million, six hundred eighty-one thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.3681872 × 10⁷

Factors of 13681872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 45

Divisors of 13681872

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 23 24 27 34 36 46 48 51 54 68 69 72 81 92 102 108 136 138 144 153 162 184 204 207 216 243 272 276 306 324 368 391 408 414 432 459 486 552 612 621 648 729 782 816 828 918 972 1104 1173 1224 1242 1296 1377 1458 1564 1656 1836 1863 1944 2187 2346 2448 2484 2754 2916 3128 3312 3519 3672 3726 3888 4131 4374 4692 4968 5508 5589 5832 6256 7038 7344 7452 8262 8748 9384 9936 10557 11016 11178 11664 12393 14076 14904 16524 16767 17496 18768 21114 22032 22356 24786 28152 29808 31671 33048 33534 34992 37179 42228 44712 49572 50301 56304 63342 66096 67068 74358 84456 89424 95013 99144 100602 126684 134136 148716 168912 190026 198288 201204 253368 268272 285039 297432 380052 402408 506736 570078 594864 760104 804816 855117 1140156 1520208 1710234 2280312 3420468 4560624 6840936 13681872
• Sum of all divisors σ(n): 43925760
• Sum of proper divisors (its aliquot sum) s(n): 30243888
• 13681872 is an abundant number, because the sum of its proper divisors (30243888) is greater than itself. Its abundance is 16562016

Bases of 13681872

• Binary: 110100001100010011010000₂
• Hexadecimal: 0xD0C4D0
• Base-36: 85900

Squares and roots of 13681872

• 13681872 squared (13681872²) is 187193621424384
• 13681872 cubed (13681872³) is 2561159167544879566848
• The square root of 13681872 is 3698.9014585415
• The cube root of 13681872 is 239.1746650125

Scales and comparisons

• 13,681,872 seconds is equal to 22 weeks, 4 days, 8 hours, 31 minutes, 12 seconds.
• To count from 1 to 13,681,872 would take you about thirty-three 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 13681872 cubic inches would be around 19.9 feet tall.

Recreational maths with 13681872

• 13681872 backwards is 27818631
• 13681872 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 13681872's digits is 36
• More coming soon!