20951

Names of 20951

• Cardinal: 20951 can be written as Twenty thousand, nine hundred fifty-one.

Scientific notation

• Scientific notation: 2.0951 × 10⁴

Factors of 20951

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 121

Divisors of 20951

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 41 73 287 511 2993 20951
• Sum of all divisors σ(n): 24864
• Sum of proper divisors (its aliquot sum) s(n): 3913
• 20951 is a deficient number, because the sum of its proper divisors (3913) is less than itself. Its deficiency is 17038

Bases of 20951

• Binary: 101000111010111₂
• Hexadecimal: 0x51D7
• Base-36: G5Z

Squares and roots of 20951

• 20951 squared (20951²) is 438944401
• 20951 cubed (20951³) is 9196324145351
• The square root of 20951 is 144.7446026627
• The cube root of 20951 is 27.5677667533

Scales and comparisons

• 20,951 seconds is equal to 5 hours, 49 minutes, 11 seconds.
• To count from 1 to 20,951 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 20951 cubic inches would be around 2.3 feet tall.

Recreational maths with 20951

• 20951 backwards is 15902
• The number of decimal digits it has is: 5
• The sum of 20951's digits is 17
• More coming soon!