21313

Names of 21313

• Cardinal: 21313 can be written as Twenty-one thousand, three hundred thirteen.

Scientific notation

• Scientific notation: 2.1313 × 10⁴

Factors of 21313

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21313

Divisors of 21313

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21313
• Sum of all divisors σ(n): 21314
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21313 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21312

Bases of 21313

• Binary: 101001101000001₂
• Hexadecimal: 0x5341
• Base-36: GG1

Squares and roots of 21313

• 21313 squared (21313²) is 454243969
• 21313 cubed (21313³) is 9681301711297
• The square root of 21313 is 145.9897256657
• The cube root of 21313 is 27.7256367069

Scales and comparisons

• 21,313 seconds is equal to 5 hours, 55 minutes, 13 seconds.
• To count from 1 to 21,313 would take you about five 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 21313 cubic inches would be around 2.3 feet tall.

Recreational maths with 21313

• 21313 backwards is 31312
• The number of decimal digits it has is: 5
• The sum of 21313's digits is 10
• More coming soon!