Number of the day: 91908

Properties of the number 91908:

91908 = 2² × 3³ × 23 × 37 is the 83030^th composite number and is not squarefree.
91908 has 4 distinct prime factors, 48 divisors, 23 antidivisors and 28512 totatives.
91908 = 22978² - 22976² = 7662² - 7656² = 2562² - 2544² = 1022² - 976² = 878² - 824² = 658² - 584² = 402² - 264² = 318² - 96² is the difference of 2 nonnegative squares in 8 ways.
91908 is the difference of 2 positive pentagonal numbers in 1 way.
91908 = 32² + 130² + 272² is the sum of 3 positive squares.
91908² = 29808² + 86940² is the sum of 2 positive squares in 1 way.
91908² is the sum of 3 positive squares.
91908 is a divisor of 919⁴ - 1.
91908 is palindromic in (at least) base -62.
91908 in base 26 = 55oo and consists of only the digits '5' and 'o'.
91908 in base 61 = Ogg and consists of only the digits 'O' and 'g'.

The number 91908 belongs to the following On-Line Encyclopedia of Integer Sequences (OEIS) sequences (among others):

Sequence numbers and descriptions below are taken from OEIS.
A121969: Numbers n such that if you subtract n-reversed from n you get a natural number with the same digits as n.
A268346: Number of partitions of (3, n) into a sum of distinct pairs.