Number of the day: 420723

Camille Jordan was born on this day 179 years ago.

Properties of the number 420723:

420723 = 3² × 46747 is the 385279^th composite number and is not squarefree.
420723 has 2 distinct prime factors, 6 divisors, 11 antidivisors and 280476 totatives.
420723 = 210362² - 210361² = 70122² - 70119² = 23378² - 23369² is the difference of 2 nonnegative squares in 3 ways.
420723 is the sum of 2 positive triangular numbers.
420723 is the difference of 2 positive pentagonal numbers in 1 way.
420723 = 7² + 85² + 643² is the sum of 3 positive squares.
420723² is the sum of 3 positive squares.
420723 is a divisor of 173¹²⁶ - 1.
420723 is palindromic in (at least) the following bases: 78, 85, and -82.