21484986

Names of 21484986

• Cardinal: 21484986 can be written as Twenty-one million, four hundred eighty-four thousand, nine hundred eighty-six.

Scientific notation

• Scientific notation: 2.1484986 × 10⁷

Factors of 21484986

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 3580836

Divisors of 21484986

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 3 6 3580831 7161662 10742493 21484986
• Sum of all divisors σ(n): 42969984
• Sum of proper divisors (its aliquot sum) s(n): 21484998
• 21484986 is an abundant number, because the sum of its proper divisors (21484998) is greater than itself. Its abundance is 12

Bases of 21484986

• Binary: 1010001111101010110111010₂
• Hexadecimal: 0x147D5BA
• Base-36: CSHX6

Squares and roots of 21484986

• 21484986 squared (21484986²) is 461604623420196
• 21484986 cubed (21484986³) is 9917568871718183177256
• The square root of 21484986 is 4635.1899637447
• The cube root of 21484986 is 278.0001466451

Scales and comparisons

• 21,484,986 seconds is equal to 35 weeks, 3 days, 16 hours, 3 minutes, 6 seconds.
• To count from 1 to 21,484,986 would take you about two 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 21484986 cubic inches would be around 23.2 feet tall.

Recreational maths with 21484986

• 21484986 backwards is 68948412
• The number of decimal digits it has is: 8
• The sum of 21484986's digits is 42
• More coming soon!