21379118

Names of 21379118

• Cardinal: 21379118 can be written as Twenty-one million, three hundred seventy-nine thousand, one hundred eighteen.

Scientific notation

• Scientific notation: 2.1379118 × 10⁷

Factors of 21379118

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 288946

Divisors of 21379118

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 37 74 288907 577814 10689559 21379118
• Sum of all divisors σ(n): 32935512
• Sum of proper divisors (its aliquot sum) s(n): 11556394
• 21379118 is a deficient number, because the sum of its proper divisors (11556394) is less than itself. Its deficiency is 9822724

Bases of 21379118

• Binary: 1010001100011100000101110₂
• Hexadecimal: 0x146382E
• Base-36: CQ88E

Squares and roots of 21379118

• 21379118 squared (21379118²) is 457066686457924
• 21379118 cubed (21379118³) is 9771682623652959231032
• The square root of 21379118 is 4623.7558326537
• The cube root of 21379118 is 277.5427761885

Scales and comparisons

• 21,379,118 seconds is equal to 35 weeks, 2 days, 10 hours, 38 minutes, 38 seconds.
• To count from 1 to 21,379,118 would take you about three 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 21379118 cubic inches would be around 23.1 feet tall.

Recreational maths with 21379118

• 21379118 backwards is 81197312
• The number of decimal digits it has is: 8
• The sum of 21379118's digits is 32
• More coming soon!