21040032

Names of 21040032

• Cardinal: 21040032 can be written as Twenty-one million, forty thousand and thirty-two.

Scientific notation

• Scientific notation: 2.1040032 × 10⁷

Factors of 21040032

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 774

Divisors of 21040032

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 12 13 16 23 24 26 32 39 46 48 52 69 78 92 96 104 138 156 184 208 276 299 312 368 416 552 598 624 733 736 897 1104 1196 1248 1466 1794 2199 2208 2392 2932 3588 4398 4784 5864 7176 8796 9529 9568 11728 14352 16859 17592 19058 23456 28587 28704 33718 35184 38116 50577 57174 67436 70368 76232 101154 114348 134872 152464 202308 219167 228696 269744 304928 404616 438334 457392 539488 657501 809232 876668 914784 1315002 1618464 1753336 2630004 3506672 5260008 7013344 10520016 21040032
• Sum of all divisors σ(n): 62149248
• Sum of proper divisors (its aliquot sum) s(n): 41109216
• 21040032 is an abundant number, because the sum of its proper divisors (41109216) is greater than itself. Its abundance is 20069184

Bases of 21040032

• Binary: 1010000010000101110100000₂
• Hexadecimal: 0x1410BA0
• Base-36: CIYLC

Squares and roots of 21040032

• 21040032 squared (21040032²) is 442682946561024
• 21040032 cubed (21040032³) is 9314063361498234912768
• The square root of 21040032 is 4586.9414646363
• The cube root of 21040032 is 276.0676162841

Scales and comparisons

• 21,040,032 seconds is equal to 34 weeks, 5 days, 12 hours, 27 minutes, 12 seconds.
• To count from 1 to 21,040,032 would take you about six 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 21040032 cubic inches would be around 23 feet tall.

Recreational maths with 21040032

• 21040032 backwards is 23004012
• 21040032 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21040032's digits is 12
• More coming soon!