21850080

Names of 21850080

• Cardinal: 21850080 can be written as Twenty-one million, eight hundred fifty thousand and eighty.

Scientific notation

• Scientific notation: 2.185008 × 10⁷

Factors of 21850080

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 946

Divisors of 21850080

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 49 56 60 70 80 84 96 98 105 112 120 140 147 160 168 196 210 224 240 245 280 294 336 392 420 480 490 560 588 672 735 784 840 929 980 1120 1176 1470 1568 1680 1858 1960 2352 2787 2940 3360 3716 3920 4645 4704 5574 5880 6503 7432 7840 9290 11148 11760 13006 13935 14864 18580 19509 22296 23520 26012 27870 29728 32515 37160 39018 44592 45521 52024 55740 65030 74320 78036 89184 91042 97545 104048 111480 130060 136563 148640 156072 182084 195090 208096 222960 227605 260120 273126 312144 364168 390180 445920 455210 520240 546252 624288 682815 728336 780360 910420 1040480 1092504 1365630 1456672 1560720 1820840 2185008 2731260 3121440 3641680 4370016 5462520 7283360 10925040 21850080
• Sum of all divisors σ(n): 80151120
• Sum of proper divisors (its aliquot sum) s(n): 58301040
• 21850080 is an abundant number, because the sum of its proper divisors (58301040) is greater than itself. Its abundance is 36450960

Bases of 21850080

• Binary: 1010011010110011111100000₂
• Hexadecimal: 0x14D67E0
• Base-36: D0BMO

Squares and roots of 21850080

• 21850080 squared (21850080²) is 477425996006400
• 21850080 cubed (21850080³) is 10431796206819520512000
• The square root of 21850080 is 4674.4069142513
• The cube root of 21850080 is 279.5659942967

Scales and comparisons

• 21,850,080 seconds is equal to 36 weeks, 21 hours, 28 minutes.
• To count from 1 to 21,850,080 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 21850080 cubic inches would be around 23.3 feet tall.

Recreational maths with 21850080

• 21850080 backwards is 08005812
• 21850080 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 21850080's digits is 24
• More coming soon!