23981

Names of 23981

• Cardinal: 23981 can be written as Twenty-three thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 2.3981 × 10⁴

Factors of 23981

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 23981

Divisors of 23981

• Number of divisors d(n): 2
• Complete list of divisors:
  1 23981
• Sum of all divisors σ(n): 23982
• Sum of proper divisors (its aliquot sum) s(n): 1
• 23981 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 23980

Bases of 23981

• Binary: 101110110101101₂
• Hexadecimal: 0x5DAD
• Base-36: II5

Squares and roots of 23981

• 23981 squared (23981²) is 575088361
• 23981 cubed (23981³) is 13791193985141
• The square root of 23981 is 154.8579994705
• The cube root of 23981 is 28.8373775237

Scales and comparisons

• 23,981 seconds is equal to 6 hours, 39 minutes, 41 seconds.
• To count from 1 to 23,981 would take you about six 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 23981 cubic inches would be around 2.4 feet tall.

Recreational maths with 23981

• 23981 backwards is 18932
• The number of decimal digits it has is: 5
• The sum of 23981's digits is 23
• More coming soon!