21023424

Names of 21023424

• Cardinal: 21023424 can be written as Twenty-one million, twenty-three thousand, four hundred twenty-four.

Scientific notation

• Scientific notation: 2.1023424 × 10⁷

Factors of 21023424

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 154

Divisors of 21023424

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 17 18 19 24 32 34 36 38 48 51 57 64 68 72 76 96 102 113 114 136 144 152 153 171 192 204 226 228 272 288 304 306 323 339 342 408 452 456 544 576 608 612 646 678 684 816 904 912 969 1017 1088 1216 1224 1292 1356 1368 1632 1808 1824 1921 1938 2034 2147 2448 2584 2712 2736 2907 3264 3616 3648 3842 3876 4068 4294 4896 5168 5424 5472 5763 5814 6441 7232 7684 7752 8136 8588 9792 10336 10848 10944 11526 11628 12882 15368 15504 16272 17176 17289 19323 20672 21696 23052 23256 25764 30736 31008 32544 34352 34578 36499 38646 46104 46512 51528 61472 62016 65088 68704 69156 72998 77292 92208 93024 103056 109497 122944 137408 138312 145996 154584 184416 186048 206112 218994 276624 291992 309168 328491 368832 412224 437988 553248 583984 618336 656982 875976 1106496 1167968 1236672 1313964 1751952 2335936 2627928 3503904 5255856 7007808 10511712 21023424
• Sum of all divisors σ(n): 67757040
• Sum of proper divisors (its aliquot sum) s(n): 46733616
• 21023424 is an abundant number, because the sum of its proper divisors (46733616) is greater than itself. Its abundance is 25710192

Bases of 21023424

• Binary: 1010000001100101011000000₂
• Hexadecimal: 0x140CAC0
• Base-36: CILS0

Squares and roots of 21023424

• 21023424 squared (21023424²) is 441984356683776
• 21023424 cubed (21023424³) is 9292024531930256769024
• The square root of 21023424 is 4585.1307505893
• The cube root of 21023424 is 275.9949589503

Scales and comparisons

• 21,023,424 seconds is equal to 34 weeks, 5 days, 7 hours, 50 minutes, 24 seconds.
• To count from 1 to 21,023,424 would take you about twenty-three 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 21023424 cubic inches would be around 23 feet tall.

Recreational maths with 21023424

• 21023424 backwards is 42432012
• 21023424 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21023424's digits is 18
• More coming soon!