21354479

Names of 21354479

• Cardinal: 21354479 can be written as Twenty-one million, three hundred fifty-four thousand, four hundred seventy-nine.

Scientific notation

• Scientific notation: 2.1354479 × 10⁷

Factors of 21354479

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 93480

Divisors of 21354479

• Number of divisors d(n): 4
• Complete list of divisors:
  1 229 93251 21354479
• Sum of all divisors σ(n): 21447960
• Sum of proper divisors (its aliquot sum) s(n): 93481
• 21354479 is a deficient number, because the sum of its proper divisors (93481) is less than itself. Its deficiency is 21260998

Bases of 21354479

• Binary: 1010001011101011111101111₂
• Hexadecimal: 0x145D7EF
• Base-36: CPP7Z

Squares and roots of 21354479

• 21354479 squared (21354479²) is 456013773361441
• 21354479 cubed (21354479³) is 9737936546957651244239
• The square root of 21354479 is 4621.0906721249
• The cube root of 21354479 is 277.4361143955

Scales and comparisons

• 21,354,479 seconds is equal to 35 weeks, 2 days, 3 hours, 47 minutes, 59 seconds.
• To count from 1 to 21,354,479 would take you about six days!

  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 21354479 cubic inches would be around 23.1 feet tall.

Recreational maths with 21354479

• 21354479 backwards is 97445312
• The number of decimal digits it has is: 8
• The sum of 21354479's digits is 35
• More coming soon!