20472320

Names of 20472320

• Cardinal: 20472320 can be written as Twenty million, four hundred seventy-two thousand, three hundred twenty.

Scientific notation

• Scientific notation: 2.047232 × 10⁷

Factors of 20472320

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 745

Divisors of 20472320

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 256 320 352 440 512 640 704 727 880 1280 1408 1454 1760 2560 2816 2908 3520 3635 5632 5816 7040 7270 7997 11632 14080 14540 15994 23264 28160 29080 31988 39985 46528 58160 63976 79970 93056 116320 127952 159940 186112 232640 255904 319880 372224 465280 511808 639760 930560 1023616 1279520 1861120 2047232 2559040 4094464 5118080 10236160 20472320
• Sum of all divisors σ(n): 53621568
• Sum of proper divisors (its aliquot sum) s(n): 33149248
• 20472320 is an abundant number, because the sum of its proper divisors (33149248) is greater than itself. Its abundance is 12676928

Bases of 20472320

• Binary: 1001110000110001000000000₂
• Hexadecimal: 0x1386200
• Base-36: C6SJK

Squares and roots of 20472320

• 20472320 squared (20472320²) is 419115886182400
• 20472320 cubed (20472320³) is 8580274539009671168000
• The square root of 20472320 is 4524.6347918919
• The cube root of 20472320 is 273.5619476737

Scales and comparisons

• 20,472,320 seconds is equal to 33 weeks, 5 days, 22 hours, 45 minutes, 20 seconds.
• To count from 1 to 20,472,320 would take you about fifty 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 20472320 cubic inches would be around 22.8 feet tall.

Recreational maths with 20472320

• 20472320 backwards is 02327402
• 20472320 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20472320's digits is 20
• More coming soon!