21038313

Names of 21038313

• Cardinal: 21038313 can be written as Twenty-one million, thirty-eight thousand, three hundred thirteen.

Scientific notation

• Scientific notation: 2.1038313 × 10⁷

Factors of 21038313

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 7012774

Divisors of 21038313

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 7012771 21038313
• Sum of all divisors σ(n): 28051088
• Sum of proper divisors (its aliquot sum) s(n): 7012775
• 21038313 is a deficient number, because the sum of its proper divisors (7012775) is less than itself. Its deficiency is 14025538

Bases of 21038313

• Binary: 1010000010000010011101001₂
• Hexadecimal: 0x14104E9
• Base-36: CIX9L

Squares and roots of 21038313

• 21038313 squared (21038313²) is 442610613885969
• 21038313 cubed (21038313³) is 9311780632055162130297
• The square root of 21038313 is 4586.7540810469
• The cube root of 21038313 is 276.0600977091

Scales and comparisons

• 21,038,313 seconds is equal to 34 weeks, 5 days, 11 hours, 58 minutes, 33 seconds.
• To count from 1 to 21,038,313 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 21038313 cubic inches would be around 23 feet tall.

Recreational maths with 21038313

• 21038313 backwards is 31383012
• The number of decimal digits it has is: 8
• The sum of 21038313's digits is 21
• More coming soon!