20947520

Names of 20947520

• Cardinal: 20947520 can be written as Twenty million, nine hundred forty-seven thousand, five hundred twenty.

Scientific notation

• Scientific notation: 2.094752 × 10⁷

Factors of 20947520

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 559

Divisors of 20947520

• Number of divisors d(n): 84
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 121 160 176 220 242 320 352 440 484 541 605 704 880 968 1082 1210 1760 1936 2164 2420 2705 3520 3872 4328 4840 5410 5951 7744 8656 9680 10820 11902 17312 19360 21640 23804 29755 34624 38720 43280 47608 59510 65461 86560 95216 119020 130922 173120 190432 238040 261844 327305 380864 476080 523688 654610 952160 1047376 1309220 1904320 2094752 2618440 4189504 5236880 10473760 20947520
• Sum of all divisors σ(n): 54929532
• Sum of proper divisors (its aliquot sum) s(n): 33982012
• 20947520 is an abundant number, because the sum of its proper divisors (33982012) is greater than itself. Its abundance is 13034492

Bases of 20947520

• Binary: 1001111111010001001000000₂
• Hexadecimal: 0x13FA240
• Base-36: CGZ7K

Squares and roots of 20947520

• 20947520 squared (20947520²) is 438798594150400
• 20947520 cubed (20947520³) is 9191742326937387008000
• The square root of 20947520 is 4576.8460756289
• The cube root of 20947520 is 275.6624031629

Scales and comparisons

• 20,947,520 seconds is equal to 34 weeks, 4 days, 10 hours, 45 minutes, 20 seconds.
• To count from 1 to 20,947,520 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 20947520 cubic inches would be around 23 feet tall.

Recreational maths with 20947520

• 20947520 backwards is 02574902
• The number of decimal digits it has is: 8
• The sum of 20947520's digits is 29
• More coming soon!