265 (two hundred [and] sixty-five) is the natural number following 264 and preceding 266.
In mathematics 265 is an odd composite number with two prime factors. 265's sum of its proper divisors is 59. 265 is the number of derangements possible with 6 digits. That means that it is equivalent to !6. The number 265 is associated with the geometric shape known as the Vesica Piscis. This is shown by having 2 circles overlap in a way that the circumference of each circle touches the center of the other. Archimedes estimated that the ratio of the height of this shape to the width was 265:153 or approximately √3. 265 is the 22nd Padovan number which is defined by the two equations P(0)=P(1)=P(2)=1 and P(n)=P(n-2)+P(n-3) similar to the Fibonacci sequence. 265 is the 7th number to be the hypotenuse for two separate Pythagorean Triples. The other two values would be 23 and 264 or 96 and 247. 265 is the sum of two sets of two perfect squares. Those being 11 and 12 or 16 and 3. 265 is palindromic in base 12 (1A1). References