21041493

Names of 21041493

• Cardinal: 21041493 can be written as Twenty-one million, forty-one thousand, four hundred ninety-three.

Scientific notation

• Scientific notation: 2.1041493 × 10⁷

Factors of 21041493

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 977

Divisors of 21041493

• Number of divisors d(n): 32
• Complete list of divisors:
  1 3 11 19 33 37 57 111 209 407 627 703 907 1221 2109 2721 7733 9977 17233 23199 29931 33559 51699 100677 189563 369149 568689 637621 1107447 1912863 7013831 21041493
• Sum of all divisors σ(n): 33123840
• Sum of proper divisors (its aliquot sum) s(n): 12082347
• 21041493 is a deficient number, because the sum of its proper divisors (12082347) is less than itself. Its deficiency is 8959146

Bases of 21041493

• Binary: 1010000010001000101010101₂
• Hexadecimal: 0x1411155
• Base-36: CIZPX

Squares and roots of 21041493

• 21041493 squared (21041493²) is 442744427669049
• 21041493 cubed (21041493³) is 9316003775587300850157
• The square root of 21041493 is 4587.1007183187
• The cube root of 21041493 is 276.0740060943

Scales and comparisons

• 21,041,493 seconds is equal to 34 weeks, 5 days, 12 hours, 51 minutes, 33 seconds.
• To count from 1 to 21,041,493 would take you about seven 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 21041493 cubic inches would be around 23 feet tall.

Recreational maths with 21041493

• 21041493 backwards is 39414012
• The number of decimal digits it has is: 8
• The sum of 21041493's digits is 24
• More coming soon!