20901

Names of 20901

• Cardinal: 20901 can be written as Twenty thousand, nine hundred one.

Scientific notation

• Scientific notation: 2.0901 × 10⁴

Factors of 20901

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 6970

Divisors of 20901

• Number of divisors d(n): 4
• Complete list of divisors:
  1 3 6967 20901
• Sum of all divisors σ(n): 27872
• Sum of proper divisors (its aliquot sum) s(n): 6971
• 20901 is a deficient number, because the sum of its proper divisors (6971) is less than itself. Its deficiency is 13930

Bases of 20901

• Binary: 101000110100101₂
• Hexadecimal: 0x51A5
• Base-36: G4L

Squares and roots of 20901

• 20901 squared (20901²) is 436851801
• 20901 cubed (20901³) is 9130639492701
• The square root of 20901 is 144.5717814789
• The cube root of 20901 is 27.5458189335

Scales and comparisons

• 20,901 seconds is equal to 5 hours, 48 minutes, 21 seconds.
• To count from 1 to 20,901 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 20901 cubic inches would be around 2.3 feet tall.

Recreational maths with 20901

• 20901 backwards is 10902
• The number of decimal digits it has is: 5
• The sum of 20901's digits is 12
• More coming soon!