21137329

Names of 21137329

• Cardinal: 21137329 can be written as Twenty-one million, one hundred thirty-seven thousand, three hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1137329 × 10⁷

Factors of 21137329

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 3711

Divisors of 21137329

• Number of divisors d(n): 8
• Complete list of divisors:
  1 19 331 3361 6289 63859 1112491 21137329
• Sum of all divisors σ(n): 22323680
• Sum of proper divisors (its aliquot sum) s(n): 1186351
• 21137329 is a deficient number, because the sum of its proper divisors (1186351) is less than itself. Its deficiency is 19950978

Bases of 21137329

• Binary: 1010000101000011110110001₂
• Hexadecimal: 0x14287B1
• Base-36: CL1O1

Squares and roots of 21137329

• 21137329 squared (21137329²) is 446786677254241
• 21137329 cubed (21137329³) is 9443876989939708662289
• The square root of 21137329 is 4597.5351004641
• The cube root of 21137329 is 276.4925087379

Scales and comparisons

• 21,137,329 seconds is equal to 34 weeks, 6 days, 15 hours, 28 minutes, 49 seconds.
• To count from 1 to 21,137,329 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 21137329 cubic inches would be around 23 feet tall.

Recreational maths with 21137329

• 21137329 backwards is 92373112
• The number of decimal digits it has is: 8
• The sum of 21137329's digits is 28
• More coming soon!