21964080

Names of 21964080

• Cardinal: 21964080 can be written as Twenty-one million, nine hundred sixty-four thousand and eighty.

Scientific notation

• Scientific notation: 2.196408 × 10⁷

Factors of 21964080

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 206

Divisors of 21964080

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 23 24 30 40 46 48 60 69 80 92 115 120 138 173 184 230 240 276 345 346 368 460 519 529 552 690 692 865 920 1038 1058 1104 1380 1384 1587 1730 1840 2076 2116 2595 2645 2760 2768 3174 3460 3979 4152 4232 5190 5290 5520 6348 6920 7935 7958 8304 8464 10380 10580 11937 12696 13840 15870 15916 19895 20760 21160 23874 25392 31740 31832 39790 41520 42320 47748 59685 63480 63664 79580 91517 95496 119370 126960 159160 183034 190992 238740 274551 318320 366068 457585 477480 549102 732136 915170 954960 1098204 1372755 1464272 1830340 2196408 2745510 3660680 4392816 5491020 7321360 10982040 21964080
• Sum of all divisors σ(n): 71589168
• Sum of proper divisors (its aliquot sum) s(n): 49625088
• 21964080 is an abundant number, because the sum of its proper divisors (49625088) is greater than itself. Its abundance is 27661008

Bases of 21964080

• Binary: 1010011110010010100110000₂
• Hexadecimal: 0x14F2530
• Base-36: D2RLC

Squares and roots of 21964080

• 21964080 squared (21964080²) is 482420810246400
• 21964080 cubed (21964080³) is 10595929269916749312000
• The square root of 21964080 is 4686.5851107177
• The cube root of 21964080 is 280.0513511261

Scales and comparisons

• 21,964,080 seconds is equal to 36 weeks, 2 days, 5 hours, 8 minutes.
• To count from 1 to 21,964,080 would take you about two weeks!

  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 21964080 cubic inches would be around 23.3 feet tall.

Recreational maths with 21964080

• 21964080 backwards is 08046912
• 21964080 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21964080's digits is 30
• More coming soon!