21464021

Names of 21464021

• Cardinal: 21464021 can be written as Twenty-one million, four hundred sixty-four thousand and twenty-one.

Scientific notation

• Scientific notation: 2.1464021 × 10⁷

Factors of 21464021

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 42678

Divisors of 21464021

• Number of divisors d(n): 4
• Complete list of divisors:
  1 509 42169 21464021
• Sum of all divisors σ(n): 21506700
• Sum of proper divisors (its aliquot sum) s(n): 42679
• 21464021 is a deficient number, because the sum of its proper divisors (42679) is less than itself. Its deficiency is 21421342

Bases of 21464021

• Binary: 1010001111000001111010101₂
• Hexadecimal: 0x14783D5
• Base-36: CS1QT

Squares and roots of 21464021

• 21464021 squared (21464021²) is 460704197488441
• 21464021 cubed (21464021³) is 9888564569680044881261
• The square root of 21464021 is 4632.9279079217
• The cube root of 21464021 is 277.9096932491

Scales and comparisons

• 21,464,021 seconds is equal to 35 weeks, 3 days, 10 hours, 13 minutes, 41 seconds.
• To count from 1 to 21,464,021 would take you about fifteen 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 21464021 cubic inches would be around 23.2 feet tall.

Recreational maths with 21464021

• 21464021 backwards is 12046412
• The number of decimal digits it has is: 8
• The sum of 21464021's digits is 20
• More coming soon!