21464442

Names of 21464442

• Cardinal: 21464442 can be written as Twenty-one million, four hundred sixty-four thousand, four hundred forty-two.

Scientific notation

• Scientific notation: 2.1464442 × 10⁷

Factors of 21464442

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 1192474

Divisors of 21464442

• Number of divisors d(n): 12
• Complete list of divisors:
  1 2 3 6 9 18 1192469 2384938 3577407 7154814 10732221 21464442
• Sum of all divisors σ(n): 46506330
• Sum of proper divisors (its aliquot sum) s(n): 25041888
• 21464442 is an abundant number, because the sum of its proper divisors (25041888) is greater than itself. Its abundance is 3577446

Bases of 21464442

• Binary: 1010001111000010101111010₂
• Hexadecimal: 0x147857A
• Base-36: CS22I

Squares and roots of 21464442

• 21464442 squared (21464442²) is 460722270371364
• 21464442 cubed (21464442³) is 9889146450494461038888
• The square root of 21464442 is 4632.9733433293
• The cube root of 21464442 is 277.9115102313

Scales and comparisons

• 21,464,442 seconds is equal to 35 weeks, 3 days, 10 hours, 20 minutes, 42 seconds.
• To count from 1 to 21,464,442 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 21464442 cubic inches would be around 23.2 feet tall.

Recreational maths with 21464442

• 21464442 backwards is 24446412
• The number of decimal digits it has is: 8
• The sum of 21464442's digits is 27
• More coming soon!