21329

Names of 21329

• Cardinal: 21329 can be written as Twenty-one thousand, three hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1329 × 10⁴

Factors of 21329

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 295

Divisors of 21329

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 11 77 277 1939 3047 21329
• Sum of all divisors σ(n): 26688
• Sum of proper divisors (its aliquot sum) s(n): 5359
• 21329 is a deficient number, because the sum of its proper divisors (5359) is less than itself. Its deficiency is 15970

Bases of 21329

• Binary: 101001101010001₂
• Hexadecimal: 0x5351
• Base-36: GGH

Squares and roots of 21329

• 21329 squared (21329²) is 454926241
• 21329 cubed (21329³) is 9703121794289
• The square root of 21329 is 146.0445137617
• The cube root of 21329 is 27.7325729935

Scales and comparisons

• 21,329 seconds is equal to 5 hours, 55 minutes, 29 seconds.
• To count from 1 to 21,329 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 21329 cubic inches would be around 2.3 feet tall.

Recreational maths with 21329

• 21329 backwards is 92312
• The number of decimal digits it has is: 5
• The sum of 21329's digits is 17
• More coming soon!