20971

Names of 20971

• Cardinal: 20971 can be written as Twenty thousand, nine hundred seventy-one.

Scientific notation

• Scientific notation: 2.0971 × 10⁴

Factors of 20971

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 380

Divisors of 20971

• Number of divisors d(n): 4
• Complete list of divisors:
  1 67 313 20971
• Sum of all divisors σ(n): 21352
• Sum of proper divisors (its aliquot sum) s(n): 381
• 20971 is a deficient number, because the sum of its proper divisors (381) is less than itself. Its deficiency is 20590

Bases of 20971

• Binary: 101000111101011₂
• Hexadecimal: 0x51EB
• Base-36: G6J

Squares and roots of 20971

• 20971 squared (20971²) is 439782841
• 20971 cubed (20971³) is 9222685958611
• The square root of 20971 is 144.8136733875
• The cube root of 20971 is 27.5765361035

Scales and comparisons

• 20,971 seconds is equal to 5 hours, 49 minutes, 31 seconds.
• To count from 1 to 20,971 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 20971 cubic inches would be around 2.3 feet tall.

Recreational maths with 20971

• 20971 backwards is 17902
• The number of decimal digits it has is: 5
• The sum of 20971's digits is 19
• More coming soon!