21054631

Names of 21054631

• Cardinal: 21054631 can be written as Twenty-one million, fifty-four thousand, six hundred thirty-one.

Scientific notation

• Scientific notation: 2.1054631 × 10⁷

Factors of 21054631

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 4281

Divisors of 21054631

• Number of divisors d(n): 8
• Complete list of divisors:
  1 13 421 3847 5473 50011 1619587 21054631
• Sum of all divisors σ(n): 22733984
• Sum of proper divisors (its aliquot sum) s(n): 1679353
• 21054631 is a deficient number, because the sum of its proper divisors (1679353) is less than itself. Its deficiency is 19375278

Bases of 21054631

• Binary: 1010000010100010010100111₂
• Hexadecimal: 0x14144A7
• Base-36: CJ9UV

Squares and roots of 21054631

• 21054631 squared (21054631²) is 443297486546161
• 21054631 cubed (21054631³) is 9333465002456884321591
• The square root of 21054631 is 4588.5325540961
• The cube root of 21054631 is 276.1314529947

Scales and comparisons

• 21,054,631 seconds is equal to 34 weeks, 5 days, 16 hours, 30 minutes, 31 seconds.
• To count from 1 to 21,054,631 would take you about twelve 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 21054631 cubic inches would be around 23 feet tall.

Recreational maths with 21054631

• 21054631 backwards is 13645012
• The number of decimal digits it has is: 8
• The sum of 21054631's digits is 22
• More coming soon!