20825

Names of 20825

• Cardinal: 20825 can be written as Twenty thousand, eight hundred twenty-five.

Scientific notation

• Scientific notation: 2.0825 × 10⁴

Factors of 20825

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 29

Divisors of 20825

• Number of divisors d(n): 18
• Complete list of divisors:
  1 5 7 17 25 35 49 85 119 175 245 425 595 833 1225 2975 4165 20825
• Sum of all divisors σ(n): 31806
• Sum of proper divisors (its aliquot sum) s(n): 10981
• 20825 is a deficient number, because the sum of its proper divisors (10981) is less than itself. Its deficiency is 9844

Bases of 20825

• Binary: 101000101011001₂
• Hexadecimal: 0x5159
• Base-36: G2H

Squares and roots of 20825

• 20825 squared (20825²) is 433680625
• 20825 cubed (20825³) is 9031399015625
• The square root of 20825 is 144.3086968967
• The cube root of 20825 is 27.5123911101

Scales and comparisons

• 20,825 seconds is equal to 5 hours, 47 minutes, 5 seconds.
• To count from 1 to 20,825 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 20825 cubic inches would be around 2.3 feet tall.

Recreational maths with 20825

• 20825 backwards is 52802
• 20825 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 20825's digits is 17
• More coming soon!