20807424

Names of 20807424

• Cardinal: 20807424 can be written as Twenty million, eight hundred seven thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.0807424 × 10⁷

Factors of 20807424

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 837

Divisors of 20807424

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 32 33 36 44 48 64 66 72 88 96 99 128 132 144 176 192 198 256 264 288 352 384 396 528 576 704 768 792 821 1056 1152 1408 1584 1642 2112 2304 2463 2816 3168 3284 4224 4926 6336 6568 7389 8448 9031 9852 12672 13136 14778 18062 19704 25344 26272 27093 29556 36124 39408 52544 54186 59112 72248 78816 81279 105088 108372 118224 144496 157632 162558 210176 216744 236448 288992 315264 325116 433488 472896 577984 630528 650232 866976 945792 1155968 1300464 1733952 1891584 2311936 2600928 3467904 5201856 6935808 10403712 20807424
• Sum of all divisors σ(n): 65526552
• Sum of proper divisors (its aliquot sum) s(n): 44719128
• 20807424 is an abundant number, because the sum of its proper divisors (44719128) is greater than itself. Its abundance is 23911704

Bases of 20807424

• Binary: 1001111010111111100000000₂
• Hexadecimal: 0x13D7F00
• Base-36: CDZ40

Squares and roots of 20807424

• 20807424 squared (20807424²) is 432948893515776
• 20807424 cubed (20807424³) is 9008551197713601921024
• The square root of 20807424 is 4561.5155376257
• The cube root of 20807424 is 275.0464891103

Scales and comparisons

• 20,807,424 seconds is equal to 34 weeks, 2 days, 19 hours, 50 minutes, 24 seconds.
• To count from 1 to 20,807,424 would take you about fifty-one 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 20807424 cubic inches would be around 22.9 feet tall.

Recreational maths with 20807424

• 20807424 backwards is 42470802
• The number of decimal digits it has is: 8
• The sum of 20807424's digits is 27
• More coming soon!