20989836

Names of 20989836

• Cardinal: 20989836 can be written as Twenty million, nine hundred eighty-nine thousand, eight hundred thirty-six.

Scientific notation

• Scientific notation: 2.0989836 × 10⁷

Factors of 20989836

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 248

Divisors of 20989836

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 73 84 98 126 146 147 163 196 219 252 292 294 326 438 441 489 511 588 652 657 876 882 978 1022 1141 1314 1467 1533 1764 1956 2044 2282 2628 2934 3066 3423 3577 4564 4599 5868 6132 6846 7154 7987 9198 10269 10731 11899 13692 14308 15974 18396 20538 21462 23798 23961 31948 32193 35697 41076 42924 47596 47922 64386 71394 71883 83293 95844 107091 128772 142788 143766 166586 214182 249879 287532 333172 428364 499758 583051 749637 999516 1166102 1499274 1749153 2332204 2998548 3498306 5247459 6996612 10494918 20989836
• Sum of all divisors σ(n): 62949432
• Sum of proper divisors (its aliquot sum) s(n): 41959596
• 20989836 is an abundant number, because the sum of its proper divisors (41959596) is greater than itself. Its abundance is 20969760

Bases of 20989836

• Binary: 1010000000100011110001100₂
• Hexadecimal: 0x140478C
• Base-36: CHVV0

Squares and roots of 20989836

• 20989836 squared (20989836²) is 440573215306896
• 20989836 cubed (20989836³) is 9247559535284436709056
• The square root of 20989836 is 4581.4665774179
• The cube root of 20989836 is 275.8478998117

Scales and comparisons

• 20,989,836 seconds is equal to 34 weeks, 4 days, 22 hours, 30 minutes, 36 seconds.
• To count from 1 to 20,989,836 would take you about nine 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 20989836 cubic inches would be around 23 feet tall.

Recreational maths with 20989836

• 20989836 backwards is 63898902
• The number of decimal digits it has is: 8
• The sum of 20989836's digits is 45
• More coming soon!