20406816

Names of 20406816

• Cardinal: 20406816 can be written as Twenty million, four hundred six thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 2.0406816 × 10⁷

Factors of 20406816

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 7878

Divisors of 20406816

• Number of divisors d(n): 60
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 81 96 108 144 162 216 288 324 432 648 864 1296 2592 7873 15746 23619 31492 47238 62984 70857 94476 125968 141714 188952 212571 251936 283428 377904 425142 566856 637713 755808 850284 1133712 1275426 1700568 2267424 2550852 3401136 5101704 6802272 10203408 20406816
• Sum of all divisors σ(n): 60023502
• Sum of proper divisors (its aliquot sum) s(n): 39616686
• 20406816 is an abundant number, because the sum of its proper divisors (39616686) is greater than itself. Its abundance is 19209870

Bases of 20406816

• Binary: 1001101110110001000100000₂
• Hexadecimal: 0x1376220
• Base-36: C5E00

Squares and roots of 20406816

• 20406816 squared (20406816²) is 416438139257856
• 20406816 cubed (20406816³) is 8498176483217443946496
• The square root of 20406816 is 4517.3903971209
• The cube root of 20406816 is 273.2698695941

Scales and comparisons

• 20,406,816 seconds is equal to 33 weeks, 5 days, 4 hours, 33 minutes, 36 seconds.
• To count from 1 to 20,406,816 would take you about fifty 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 20406816 cubic inches would be around 22.8 feet tall.

Recreational maths with 20406816

• 20406816 backwards is 61860402
• 20406816 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20406816's digits is 27
• More coming soon!