21424479

Names of 21424479

• Cardinal: 21424479 can be written as Twenty-one million, four hundred twenty-four thousand, four hundred seventy-nine.

Scientific notation

• Scientific notation: 2.1424479 × 10⁷

Factors of 21424479

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 23277

Divisors of 21424479

• Number of divisors d(n): 8
• Complete list of divisors:
  1 3 311 933 22963 68889 7141493 21424479
• Sum of all divisors σ(n): 28659072
• Sum of proper divisors (its aliquot sum) s(n): 7234593
• 21424479 is a deficient number, because the sum of its proper divisors (7234593) is less than itself. Its deficiency is 14189886

Bases of 21424479

• Binary: 1010001101110100101011111₂
• Hexadecimal: 0x146E95F
• Base-36: CR78F

Squares and roots of 21424479

• 21424479 squared (21424479²) is 459008300421441
• 21424479 cubed (21424479³) is 9834013693204853854239
• The square root of 21424479 is 4628.6584449493
• The cube root of 21424479 is 277.7389290323

Scales and comparisons

• 21,424,479 seconds is equal to 35 weeks, 2 days, 23 hours, 14 minutes, 39 seconds.
• To count from 1 to 21,424,479 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 21424479 cubic inches would be around 23.1 feet tall.

Recreational maths with 21424479

• 21424479 backwards is 97442412
• The number of decimal digits it has is: 8
• The sum of 21424479's digits is 33
• More coming soon!