20810

Names of 20810

• Cardinal: 20810 can be written as Twenty thousand, eight hundred ten.

Scientific notation

• Scientific notation: 2.081 × 10⁴

Factors of 20810

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 2088

Divisors of 20810

• Number of divisors d(n): 8
• Complete list of divisors:
  1 2 5 10 2081 4162 10405 20810
• Sum of all divisors σ(n): 37476
• Sum of proper divisors (its aliquot sum) s(n): 16666
• 20810 is a deficient number, because the sum of its proper divisors (16666) is less than itself. Its deficiency is 4144

Bases of 20810

• Binary: 101000101001010₂
• Hexadecimal: 0x514A
• Base-36: G22

Squares and roots of 20810

• 20810 squared (20810²) is 433056100
• 20810 cubed (20810³) is 9011897441000
• The square root of 20810 is 144.2567156149
• The cube root of 20810 is 27.5057839073

Scales and comparisons

• 20,810 seconds is equal to 5 hours, 46 minutes, 50 seconds.
• To count from 1 to 20,810 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 20810 cubic inches would be around 2.3 feet tall.

Recreational maths with 20810

• 20810 backwards is 01802
• The number of decimal digits it has is: 5
• The sum of 20810's digits is 11
• More coming soon!