20955

Names of 20955

• Cardinal: 20955 can be written as Twenty thousand, nine hundred fifty-five.

Scientific notation

• Scientific notation: 2.0955 × 10⁴

Factors of 20955

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 4
• Sum of prime factors: 146

Divisors of 20955

• Number of divisors d(n): 16
• Complete list of divisors:
  1 3 5 11 15 33 55 127 165 381 635 1397 1905 4191 6985 20955
• Sum of all divisors σ(n): 36864
• Sum of proper divisors (its aliquot sum) s(n): 15909
• 20955 is a deficient number, because the sum of its proper divisors (15909) is less than itself. Its deficiency is 5046

Bases of 20955

• Binary: 101000111011011₂
• Hexadecimal: 0x51DB
• Base-36: G63

Squares and roots of 20955

• 20955 squared (20955²) is 439112025
• 20955 cubed (20955³) is 9201592483875
• The square root of 20955 is 144.7584194443
• The cube root of 20955 is 27.5695210693

Scales and comparisons

• 20,955 seconds is equal to 5 hours, 49 minutes, 15 seconds.
• To count from 1 to 20,955 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 20955 cubic inches would be around 2.3 feet tall.

Recreational maths with 20955

• 20955 backwards is 55902
• The number of decimal digits it has is: 5
• The sum of 20955's digits is 21
• More coming soon!