21109249

Names of 21109249

• Cardinal: 21109249 can be written as Twenty-one million, one hundred nine thousand, two hundred forty-nine.

Scientific notation

• Scientific notation: 2.1109249 × 10⁷

Factors of 21109249

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 61550

Divisors of 21109249

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 49 343 61543 430801 3015607 21109249
• Sum of all divisors σ(n): 24617600
• Sum of proper divisors (its aliquot sum) s(n): 3508351
• 21109249 is a deficient number, because the sum of its proper divisors (3508351) is less than itself. Its deficiency is 17600898

Bases of 21109249

• Binary: 1010000100001101000000001₂
• Hexadecimal: 0x1421A01
• Base-36: CKG01

Squares and roots of 21109249

• 21109249 squared (21109249²) is 445600393344001
• 21109249 cubed (21109249³) is 9406289657596459765249
• The square root of 21109249 is 4594.4802752869
• The cube root of 21109249 is 276.3700184871

Scales and comparisons

• 21,109,249 seconds is equal to 34 weeks, 6 days, 7 hours, 40 minutes, 49 seconds.
• To count from 1 to 21,109,249 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 21109249 cubic inches would be around 23 feet tall.

Recreational maths with 21109249

• 21109249 backwards is 94290112
• The number of decimal digits it has is: 8
• The sum of 21109249's digits is 28
• More coming soon!