21039446

Names of 21039446

• Cardinal: 21039446 can be written as Twenty-one million, thirty-nine thousand, four hundred forty-six.

Scientific notation

• Scientific notation: 2.1039446 × 10⁷

Factors of 21039446

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 6678

Divisors of 21039446

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 2549 4127 5098 8254 10519723 21039446
• Sum of all divisors σ(n): 31579200
• Sum of proper divisors (its aliquot sum) s(n): 10539754
• 21039446 is a deficient number, because the sum of its proper divisors (10539754) is less than itself. Its deficiency is 10499692

Bases of 21039446

• Binary: 1010000010000100101010110₂
• Hexadecimal: 0x1410956
• Base-36: CIY52

Squares and roots of 21039446

• 21039446 squared (21039446²) is 442658287986916
• 21039446 cubed (21039446³) is 9313285146553167888536
• The square root of 21039446 is 4586.8775872047
• The cube root of 21039446 is 276.0650532787

Scales and comparisons

• 21,039,446 seconds is equal to 34 weeks, 5 days, 12 hours, 17 minutes, 26 seconds.
• To count from 1 to 21,039,446 would take you about six 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 21039446 cubic inches would be around 23 feet tall.

Recreational maths with 21039446

• 21039446 backwards is 64493012
• The number of decimal digits it has is: 8
• The sum of 21039446's digits is 29
• More coming soon!