21423976

Names of 21423976

• Cardinal: 21423976 can be written as Twenty-one million, four hundred twenty-three thousand, nine hundred seventy-six.

Scientific notation

• Scientific notation: 2.1423976 × 10⁷

Factors of 21423976

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 124

Divisors of 21423976

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 7 8 14 28 31 41 43 49 56 62 82 86 98 124 164 172 196 217 248 287 301 328 344 392 434 574 602 868 1148 1204 1271 1333 1519 1736 1763 2009 2107 2296 2408 2542 2666 3038 3526 4018 4214 5084 5332 6076 7052 8036 8428 8897 9331 10168 10664 12152 12341 14104 16072 16856 17794 18662 24682 35588 37324 49364 54653 62279 65317 71176 74648 86387 98728 109306 124558 130634 172774 218612 249116 261268 345548 382571 437224 498232 522536 691096 765142 1530284 2677997 3060568 5355994 10711988 21423976
• Sum of all divisors σ(n): 50561280
• Sum of proper divisors (its aliquot sum) s(n): 29137304
• 21423976 is an abundant number, because the sum of its proper divisors (29137304) is greater than itself. Its abundance is 7713328

Bases of 21423976

• Binary: 1010001101110011101101000₂
• Hexadecimal: 0x146E768
• Base-36: CR6UG

Squares and roots of 21423976

• 21423976 squared (21423976²) is 458986747648576
• 21423976 cubed (21423976³) is 9833321065941148658176
• The square root of 21423976 is 4628.6041092321
• The cube root of 21423976 is 277.7367554473

Scales and comparisons

• 21,423,976 seconds is equal to 35 weeks, 2 days, 23 hours, 6 minutes, 16 seconds.
• To count from 1 to 21,423,976 would take you about twenty-two hours!

  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 21423976 cubic inches would be around 23.1 feet tall.

Recreational maths with 21423976

• 21423976 backwards is 67932412
• The number of decimal digits it has is: 8
• The sum of 21423976's digits is 34
• More coming soon!