20971400

Names of 20971400

• Cardinal: 20971400 can be written as Twenty million, nine hundred seventy-one thousand, four hundred.

Scientific notation

• Scientific notation: 2.09714 × 10⁷

Factors of 20971400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 174

Divisors of 20971400

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 20 23 25 40 46 47 50 92 94 97 100 115 184 188 194 200 230 235 376 388 460 470 485 575 776 920 940 970 1081 1150 1175 1880 1940 2162 2231 2300 2350 2425 3880 4324 4462 4559 4600 4700 4850 5405 8648 8924 9118 9400 9700 10810 11155 17848 18236 19400 21620 22310 22795 27025 36472 43240 44620 45590 54050 55775 89240 91180 104857 108100 111550 113975 182360 209714 216200 223100 227950 419428 446200 455900 524285 838856 911800 1048570 2097140 2621425 4194280 5242850 10485700 20971400
• Sum of all divisors σ(n): 52496640
• Sum of proper divisors (its aliquot sum) s(n): 31525240
• 20971400 is an abundant number, because the sum of its proper divisors (31525240) is greater than itself. Its abundance is 10553840

Bases of 20971400

• Binary: 1001111111111111110001000₂
• Hexadecimal: 0x13FFF88
• Base-36: CHHMW

Squares and roots of 20971400

• 20971400 squared (20971400²) is 439799617960000
• 20971400 cubed (20971400³) is 9223213708086344000000
• The square root of 20971400 is 4579.4541159401
• The cube root of 20971400 is 275.7671143381

Scales and comparisons

• 20,971,400 seconds is equal to 34 weeks, 4 days, 17 hours, 23 minutes, 20 seconds.
• To count from 1 to 20,971,400 would take you about two 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 20971400 cubic inches would be around 23 feet tall.

Recreational maths with 20971400

• 20971400 backwards is 00417902
• 20971400 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20971400's digits is 23
• More coming soon!