21307338

Names of 21307338

• Cardinal: 21307338 can be written as Twenty-one million, three hundred seven thousand, three hundred thirty-eight.

Scientific notation

• Scientific notation: 2.1307338 × 10⁷

Factors of 21307338

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 185

Divisors of 21307338

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 9 13 18 23 26 37 39 46 69 74 78 107 111 117 138 207 214 222 234 299 321 333 414 481 598 642 666 851 897 962 963 1391 1443 1702 1794 1926 2461 2553 2691 2782 2886 3959 4173 4329 4922 5106 5382 7383 7659 7918 8346 8658 11063 11877 12519 14766 15318 22126 22149 23754 25038 31993 33189 35631 44298 51467 63986 66378 71262 91057 95979 99567 102934 154401 182114 191958 199134 273171 287937 308802 463203 546342 575874 819513 926406 1183741 1639026 2367482 3551223 7102446 10653669 21307338
• Sum of all divisors σ(n): 53778816
• Sum of proper divisors (its aliquot sum) s(n): 32471478
• 21307338 is an abundant number, because the sum of its proper divisors (32471478) is greater than itself. Its abundance is 11164140

Bases of 21307338

• Binary: 1010001010001111111001010₂
• Hexadecimal: 0x1451FCA
• Base-36: COOUI

Squares and roots of 21307338

• 21307338 squared (21307338²) is 454002652646244
• 21307338 cubed (21307338³) is 9673587972830115338472
• The square root of 21307338 is 4615.9872183531
• The cube root of 21307338 is 277.2318129689

Scales and comparisons

• 21,307,338 seconds is equal to 35 weeks, 1 day, 14 hours, 42 minutes, 18 seconds.
• To count from 1 to 21,307,338 would take you about five 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 21307338 cubic inches would be around 23.1 feet tall.

Recreational maths with 21307338

• 21307338 backwards is 83370312
• The number of decimal digits it has is: 8
• The sum of 21307338's digits is 27
• More coming soon!