21070849

Names of 21070849

• Cardinal: 21070849 can be written as Twenty-one million, seventy thousand, eight hundred forty-nine.

Scientific notation

• Scientific notation: 2.1070849 × 10⁷

Factors of 21070849

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 1799

Divisors of 21070849

• Number of divisors d(n): 8
• Complete list of divisors:
  1 29 647 1123 18763 32567 726581 21070849
• Sum of all divisors σ(n): 21850560
• Sum of proper divisors (its aliquot sum) s(n): 779711
• 21070849 is a deficient number, because the sum of its proper divisors (779711) is less than itself. Its deficiency is 20291138

Bases of 21070849

• Binary: 1010000011000010000000001₂
• Hexadecimal: 0x1418401
• Base-36: CJMDD

Squares and roots of 21070849

• 21070849 squared (21070849²) is 443980677580801
• 21070849 cubed (21070849³) is 9355049816222743170049
• The square root of 21070849 is 4590.2994455701
• The cube root of 21070849 is 276.2023344799

Scales and comparisons

• 21,070,849 seconds is equal to 34 weeks, 5 days, 21 hours, 49 seconds.
• To count from 1 to 21,070,849 would take you about nineteen 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 21070849 cubic inches would be around 23 feet tall.

Recreational maths with 21070849

• 21070849 backwards is 94807012
• The number of decimal digits it has is: 8
• The sum of 21070849's digits is 31
• More coming soon!