21422

Names of 21422

• Cardinal: 21422 can be written as Twenty-one thousand, four hundred twenty-two.

Scientific notation

• Scientific notation: 2.1422 × 10⁴

Factors of 21422

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 10713

Divisors of 21422

• Number of divisors d(n): 4
• Complete list of divisors:
  1 2 10711 21422
• Sum of all divisors σ(n): 32136
• Sum of proper divisors (its aliquot sum) s(n): 10714
• 21422 is a deficient number, because the sum of its proper divisors (10714) is less than itself. Its deficiency is 10708

Bases of 21422

• Binary: 101001110101110₂
• Hexadecimal: 0x53AE
• Base-36: GJ2

Squares and roots of 21422

• 21422 squared (21422²) is 458902084
• 21422 cubed (21422³) is 9830600443448
• The square root of 21422 is 146.3625635195
• The cube root of 21422 is 27.7728216343

Scales and comparisons

• 21,422 seconds is equal to 5 hours, 57 minutes, 2 seconds.
• To count from 1 to 21,422 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 21422 cubic inches would be around 2.3 feet tall.

Recreational maths with 21422

• 21422 backwards is 22412
• The number of decimal digits it has is: 5
• The sum of 21422's digits is 11
• More coming soon!