21212244

Names of 21212244

• Cardinal: 21212244 can be written as Twenty-one million, two hundred twelve thousand, two hundred forty-four.

Scientific notation

• Scientific notation: 2.1212244 × 10⁷

Factors of 21212244

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 312

Divisors of 21212244

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 43 71 86 129 142 172 193 213 258 284 386 387 426 516 579 639 772 774 852 1158 1278 1548 1737 2316 2556 3053 3474 6106 6948 8299 9159 12212 13703 16598 18318 24897 27406 27477 33196 36636 41109 49794 54812 54954 74691 82218 99588 109908 123327 149382 164436 246654 298764 493308 589229 1178458 1767687 2356916 3535374 5303061 7070748 10606122 21212244
• Sum of all divisors σ(n): 55927872
• Sum of proper divisors (its aliquot sum) s(n): 34715628
• 21212244 is an abundant number, because the sum of its proper divisors (34715628) is greater than itself. Its abundance is 13503384

Bases of 21212244

• Binary: 1010000111010110001010100₂
• Hexadecimal: 0x143AC54
• Base-36: CMNH0

Squares and roots of 21212244

• 21212244 squared (21212244²) is 449959295515536
• 21212244 cubed (21212244³) is 9544646366543655422784
• The square root of 21212244 is 4605.6751948005
• The cube root of 21212244 is 276.8187721851

Scales and comparisons

• 21,212,244 seconds is equal to 35 weeks, 12 hours, 17 minutes, 24 seconds.
• To count from 1 to 21,212,244 would take you about four 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 21212244 cubic inches would be around 23.1 feet tall.

Recreational maths with 21212244

• 21212244 backwards is 44221212
• 21212244 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21212244's digits is 18
• More coming soon!