565

Names of 565

• Cardinal: 565 can be written as Five hundred sixty-five.

Scientific notation

• Scientific notation: 5.65 × 10²

Factors of 565

• Number of distinct prime factors ω(n): 2
• Total number of prime factors Ω(n): 2
• Sum of prime factors: 118

Divisors of 565

• Number of divisors d(n): 4
• Complete list of divisors:
  1 5 113 565
• Sum of all divisors σ(n): 684
• Sum of proper divisors (its aliquot sum) s(n): 119
• 565 is a deficient number, because the sum of its proper divisors (119) is less than itself. Its deficiency is 446

Bases of 565

• Binary: 1000110101₂
• Hexadecimal: 0x235
• Base-36: FP

Squares and roots of 565

• 565 squared (565²) is 319225
• 565 cubed (565³) is 180362125
• The square root of 565 is 23.7697286481
• The cube root of 565 is 8.2670294095

Scales and comparisons

• 565 seconds is equal to 9 minutes, 25 seconds.
• To count from 1 to 565 would take you about four minutes.

  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 565 cubic inches would be around 0.7 feet tall.

Recreational maths with 565

• 565 is the same when its digits are reversed! That makes it a palindromic number.
• The number of decimal digits it has is: 3
• The sum of 565's digits is 16
• More coming soon!