21364993

Names of 21364993

• Cardinal: 21364993 can be written as Twenty-one million, three hundred sixty-four thousand, nine hundred ninety-three.

Scientific notation

• Scientific notation: 2.1364993 × 10⁷

Factors of 21364993

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 1643474

Divisors of 21364993

• Number of divisors d(n): 4
• Complete list of divisors:
  1 13 1643461 21364993
• Sum of all divisors σ(n): 23008468
• Sum of proper divisors (its aliquot sum) s(n): 1643475
• 21364993 is a deficient number, because the sum of its proper divisors (1643475) is less than itself. Its deficiency is 19721518

Bases of 21364993

• Binary: 1010001100000000100000001₂
• Hexadecimal: 0x1460101
• Base-36: CPXC1

Squares and roots of 21364993

• 21364993 squared (21364993²) is 456462925890049
• 21364993 cubed (21364993³) is 9752327216400415654657
• The square root of 21364993 is 4622.2281423573
• The cube root of 21364993 is 277.4816393447

Scales and comparisons

• 21,364,993 seconds is equal to 35 weeks, 2 days, 6 hours, 43 minutes, 13 seconds.
• To count from 1 to 21,364,993 would take you about six 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 21364993 cubic inches would be around 23.1 feet tall.

Recreational maths with 21364993

• 21364993 backwards is 39946312
• The number of decimal digits it has is: 8
• The sum of 21364993's digits is 37
• More coming soon!