47981

Names of 47981

• Cardinal: 47981 can be written as Forty-seven thousand, nine hundred eighty-one.

Scientific notation

• Scientific notation: 4.7981 × 10⁴

Factors of 47981

• Number of distinct prime factors ω(n): 1
• Total number of prime factors Ω(n): 1
• Sum of prime factors: 47981

Divisors of 47981

• Number of divisors d(n): 2
• Complete list of divisors:
  1 47981
• Sum of all divisors σ(n): 47982
• Sum of proper divisors (its aliquot sum) s(n): 1
• 47981 is a deficient number, because the sum of its proper divisors (1) is less than itself. Its deficiency is 47980

Bases of 47981

• Binary: 1011101101101101₂
• Hexadecimal: 0xBB6D
• Base-36: 110T

Squares and roots of 47981

• 47981 squared (47981²) is 2302176361
• 47981 cubed (47981³) is 110460723977141
• The square root of 47981 is 219.0456573411
• The cube root of 47981 is 36.3376160445

Scales and comparisons

• 47,981 seconds is equal to 13 hours, 19 minutes, 41 seconds.
• To count from 1 to 47,981 would take you about thirteen 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 47981 cubic inches would be around 3 feet tall.

Recreational maths with 47981

• 47981 backwards is 18974
• The number of decimal digits it has is: 5
• The sum of 47981's digits is 29
• More coming soon!