21424499

Names of 21424499

• Cardinal: 21424499 can be written as Twenty-one million, four hundred twenty-four thousand, four hundred ninety-nine.

Scientific notation

• Scientific notation: 2.1424499 × 10⁷

Factors of 21424499

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 21424499

Divisors of 21424499

• Number of divisors d(n): 2
• Complete list of divisors:
  1 21424499
• Sum of all divisors σ(n): 21424500
• Sum of proper divisors (its aliquot sum) s(n): 1
• 21424499 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 21424498

Bases of 21424499

• Binary: 1010001101110100101110011₂
• Hexadecimal: 0x146E973
• Base-36: CR78Z

Squares and roots of 21424499

• 21424499 squared (21424499²) is 459009157401001
• 21424499 cubed (21424499³) is 9834041233728588523499
• The square root of 21424499 is 4628.6606054019
• The cube root of 21424499 is 277.7390154563

Scales and comparisons

• 21,424,499 seconds is equal to 35 weeks, 2 days, 23 hours, 14 minutes, 59 seconds.
• To count from 1 to 21,424,499 would take you about twenty-two 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 21424499 cubic inches would be around 23.1 feet tall.

Recreational maths with 21424499

• 21424499 backwards is 99442412
• The number of decimal digits it has is: 8
• The sum of 21424499's digits is 35
• More coming soon!