21016814

Names of 21016814

• Cardinal: 21016814 can be written as Twenty-one million, sixteen thousand, eight hundred fourteen.

Scientific notation

• Scientific notation: 2.1016814 × 10⁷

Factors of 21016814

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 3180

Divisors of 21016814

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 7 13 14 26 37 74 91 182 259 481 518 962 3121 3367 6242 6734 21847 40573 43694 81146 115477 230954 284011 568022 808339 1501201 1616678 3002402 10508407 21016814
• Sum of all divisors σ(n): 39861696
• Sum of proper divisors (its aliquot sum) s(n): 18844882
• 21016814 is a deficient number, because the sum of its proper divisors (18844882) is less than itself. Its deficiency is 2171932

Bases of 21016814

• Binary: 1010000001011000011101110₂
• Hexadecimal: 0x140B0EE
• Base-36: CIGOE

Squares and roots of 21016814

• 21016814 squared (21016814²) is 441706470710596
• 21016814 cubed (21016814³) is 9283262737521043961144
• The square root of 21016814 is 4584.4098856887
• The cube root of 21016814 is 275.9660306159

Scales and comparisons

• 21,016,814 seconds is equal to 34 weeks, 5 days, 6 hours, 14 seconds.
• To count from 1 to 21,016,814 would take you about twenty-one 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 21016814 cubic inches would be around 23 feet tall.

Recreational maths with 21016814

• 21016814 backwards is 41861012
• The number of decimal digits it has is: 8
• The sum of 21016814's digits is 23
• More coming soon!