20406

Names of 20406

• Cardinal: 20406 can be written as Twenty thousand, four hundred six.

Scientific notation

• Scientific notation: 2.0406 × 10⁴

Factors of 20406

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 203

Divisors of 20406

• Number of divisors d(n): 16
• Complete list of divisors:
  1 2 3 6 19 38 57 114 179 358 537 1074 3401 6802 10203 20406
• Sum of all divisors σ(n): 43200
• Sum of proper divisors (its aliquot sum) s(n): 22794
• 20406 is an abundant number, because the sum of its proper divisors (22794) is greater than itself. Its abundance is 2388

Bases of 20406

• Binary: 100111110110110₂
• Hexadecimal: 0x4FB6
• Base-36: FQU

Squares and roots of 20406

• 20406 squared (20406²) is 416404836
• 20406 cubed (20406³) is 8497157083416
• The square root of 20406 is 142.8495712283
• The cube root of 20406 is 27.3266227165

Scales and comparisons

• 20,406 seconds is equal to 5 hours, 40 minutes, 6 seconds.
• To count from 1 to 20,406 would take you about five 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 20406 cubic inches would be around 2.3 feet tall.

Recreational maths with 20406

• 20406 backwards is 60402
• The number of decimal digits it has is: 5
• The sum of 20406's digits is 12
• More coming soon!