21106481

Names of 21106481

• Cardinal: 21106481 can be written as Twenty-one million, one hundred six thousand, four hundred eighty-one.

Scientific notation

• Scientific notation: 2.1106481 × 10⁷

Factors of 21106481

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1918782

Divisors of 21106481

• Number of divisors d(n): 4
• Complete list of divisors:
  1 11 1918771 21106481
• Sum of all divisors σ(n): 23025264
• Sum of proper divisors (its aliquot sum) s(n): 1918783
• 21106481 is a deficient number, because the sum of its proper divisors (1918783) is less than itself. Its deficiency is 19187698

Bases of 21106481

• Binary: 1010000100000111100110001₂
• Hexadecimal: 0x1420F31
• Base-36: CKDV5

Squares and roots of 21106481

• 21106481 squared (21106481²) is 445483540203361
• 21106481 cubed (21106481³) is 9402589877114975082641
• The square root of 21106481 is 4594.1790343869
• The cube root of 21106481 is 276.3579380691

Scales and comparisons

• 21,106,481 seconds is equal to 34 weeks, 6 days, 6 hours, 54 minutes, 41 seconds.
• To count from 1 to 21,106,481 would take you about two days!

  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 21106481 cubic inches would be around 23 feet tall.

Recreational maths with 21106481

• 21106481 backwards is 18460112
• The number of decimal digits it has is: 8
• The sum of 21106481's digits is 23
• More coming soon!