81713

Names of 81713

• Cardinal: 81713 can be written as Eighty-one thousand, seven hundred thirteen.

Scientific notation

• Scientific notation: 8.1713 × 10⁴

Factors of 81713

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 2034

Divisors of 81713

• Number of divisors d(n): 4
• Complete list of divisors:
  1 41 1993 81713
• Sum of all divisors σ(n): 83748
• Sum of proper divisors (its aliquot sum) s(n): 2035
• 81713 is a deficient number, because the sum of its proper divisors (2035) is less than itself. Its deficiency is 79678

Bases of 81713

• Binary: 10011111100110001₂
• Hexadecimal: 0x13F31
• Base-36: 1R1T

Squares and roots of 81713

• 81713 squared (81713²) is 6677014369
• 81713 cubed (81713³) is 545598875134097
• The square root of 81713 is 285.8548582761
• The cube root of 81713 is 43.3940699917

Scales and comparisons

• 81,713 seconds is equal to 22 hours, 41 minutes, 53 seconds.
• To count from 1 to 81,713 would take you about twenty-two 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 81713 cubic inches would be around 3.6 feet tall.

Recreational maths with 81713

• 81713 backwards is 31718
• The number of decimal digits it has is: 5
• The sum of 81713's digits is 20
• More coming soon!