21613

Names of 21613

• Cardinal: 21613 can be written as Twenty-one thousand, six hundred thirteen.

Scientific notation

• Scientific notation: 2.1613 × 10⁴

Factors of 21613

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21613

Divisors of 21613

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21613
• Sum of all divisors σ(n): 21614
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21613 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21612

Bases of 21613

• Binary: 101010001101101₂
• Hexadecimal: 0x546D
• Base-36: GOD

Squares and roots of 21613

• 21613 squared (21613²) is 467121769
• 21613 cubed (21613³) is 10095902793397
• The square root of 21613 is 147.0136048127
• The cube root of 21613 is 27.8551189787

Scales and comparisons

• 21,613 seconds is equal to 6 hours, 13 seconds.
• To count from 1 to 21,613 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 21613 cubic inches would be around 2.3 feet tall.

Recreational maths with 21613

• 21613 backwards is 31612
• The number of decimal digits it has is: 5
• The sum of 21613's digits is 13
• More coming soon!