Number of the day: 344049

Properties of the number 344049:

344049 = 3 × 73 × 1571 is a sphenic number and squarefree.
344049 has 3 distinct prime factors, 8 divisors, 9 antidivisors and 226080 totatives.
344049 = 172025² - 172024² = 57343² - 57340² = 2393² - 2320² = 895² - 676² is the difference of 2 nonnegative squares in 4 ways.
344049 is the sum of 2 positive triangular numbers.
344049 is the difference of 2 positive pentagonal numbers in 2 ways.
344049 = 13² + 22² + 586² is the sum of 3 positive squares.
344049² = 226224² + 259215² is the sum of 2 positive squares in 1 way.
344049² is the sum of 3 positive squares.
344049 is a proper divisor of 1607³¹⁴ - 1.

The number 344049 belongs to the following On-Line Encyclopedia of Integer Sequences (OEIS) sequence (among others):

Sequence number and description below are taken from OEIS.
A305158: a(n) = 21*2^n - 15.