20993904

Names of 20993904

• Cardinal: 20993904 can be written as Twenty million, nine hundred ninety-three thousand, nine hundred four.

Scientific notation

• Scientific notation: 2.0993904 × 10⁷

Factors of 20993904

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 269

Divisors of 20993904

• Number of divisors d(n): 100
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 97 108 144 162 167 194 216 291 324 334 388 432 501 582 648 668 776 873 1002 1164 1296 1336 1503 1552 1746 2004 2328 2619 2672 3006 3492 4008 4509 4656 5238 6012 6984 7857 8016 9018 10476 12024 13527 13968 15714 16199 18036 20952 24048 27054 31428 32398 36072 41904 48597 54108 62856 64796 72144 97194 108216 125712 129592 145791 194388 216432 259184 291582 388776 437373 583164 777552 874746 1166328 1312119 1749492 2332656 2624238 3498984 5248476 6997968 10496952 20993904
• Sum of all divisors σ(n): 61756464
• Sum of proper divisors (its aliquot sum) s(n): 40762560
• 20993904 is an abundant number, because the sum of its proper divisors (40762560) is greater than itself. Its abundance is 19768656

Bases of 20993904

• Binary: 1010000000101011101110000₂
• Hexadecimal: 0x1405770
• Base-36: CHZ00

Squares and roots of 20993904

• 20993904 squared (20993904²) is 440744005161216
• 20993904 cubed (20993904³) is 9252937332930073227264
• The square root of 20993904 is 4581.9105185501
• The cube root of 20993904 is 275.8657191787

Scales and comparisons

• 20,993,904 seconds is equal to 34 weeks, 4 days, 23 hours, 38 minutes, 24 seconds.
• To count from 1 to 20,993,904 would take you about eleven hours!

  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 20993904 cubic inches would be around 23 feet tall.

Recreational maths with 20993904

• 20993904 backwards is 40939902
• 20993904 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20993904's digits is 36
• More coming soon!