20849921

Names of 20849921

• Cardinal: 20849921 can be written as Twenty million, eight hundred forty-nine thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 2.0849921 × 10⁷

Factors of 20849921

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 77778

Divisors of 20849921

• Number of divisors d(n): 4
• Complete list of divisors:
  1 269 77509 20849921
• Sum of all divisors σ(n): 20927700
• Sum of proper divisors (its aliquot sum) s(n): 77779
• 20849921 is a deficient number, because the sum of its proper divisors (77779) is less than itself. Its deficiency is 20772142

Bases of 20849921

• Binary: 1001111100010010100000001₂
• Hexadecimal: 0x13E2501
• Base-36: CEVWH

Squares and roots of 20849921

• 20849921 squared (20849921²) is 434719205706241
• 20849921 cubed (20849921³) is 9063861096157874056961
• The square root of 20849921 is 4566.1713721673
• The cube root of 20849921 is 275.2336130593

Scales and comparisons

• 20,849,921 seconds is equal to 34 weeks, 3 days, 7 hours, 38 minutes, 41 seconds.
• To count from 1 to 20,849,921 would take you about fifty-one weeks!

  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 20849921 cubic inches would be around 22.9 feet tall.

Recreational maths with 20849921

• 20849921 backwards is 12994802
• The number of decimal digits it has is: 8
• The sum of 20849921's digits is 35
• More coming soon!