21299712

Names of 21299712

• Cardinal: 21299712 can be written as Twenty-one million, two hundred ninety-nine thousand, seven hundred twelve.

Scientific notation

• Scientific notation: 2.1299712 × 10⁷

Factors of 21299712

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 295

Divisors of 21299712

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 49 56 64 84 96 98 112 128 147 168 192 196 224 256 283 294 336 384 392 448 512 566 588 672 768 784 849 896 1132 1176 1344 1536 1568 1698 1792 1981 2264 2352 2688 3136 3396 3584 3962 4528 4704 5376 5943 6272 6792 7924 9056 9408 10752 11886 12544 13584 13867 15848 18112 18816 23772 25088 27168 27734 31696 36224 37632 41601 47544 54336 55468 63392 72448 75264 83202 95088 108672 110936 126784 144896 166404 190176 217344 221872 253568 332808 380352 434688 443744 507136 665616 760704 887488 1014272 1331232 1521408 1774976 2662464 3042816 3549952 5324928 7099904 10649856 21299712
• Sum of all divisors σ(n): 66241296
• Sum of proper divisors (its aliquot sum) s(n): 44941584
• 21299712 is an abundant number, because the sum of its proper divisors (44941584) is greater than itself. Its abundance is 23641872

Bases of 21299712

• Binary: 1010001010000001000000000₂
• Hexadecimal: 0x1450200
• Base-36: COIYO

Squares and roots of 21299712

• 21299712 squared (21299712²) is 453677731282944
• 21299712 cubed (21299712³) is 9663205017140097712128
• The square root of 21299712 is 4615.1611022801
• The cube root of 21299712 is 277.1987348173

Scales and comparisons

• 21,299,712 seconds is equal to 35 weeks, 1 day, 12 hours, 35 minutes, 12 seconds.
• To count from 1 to 21,299,712 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 21299712 cubic inches would be around 23.1 feet tall.

Recreational maths with 21299712

• 21299712 backwards is 21799212
• The number of decimal digits it has is: 8
• The sum of 21299712's digits is 33
• More coming soon!