72650 has 12 divisors (see below), whose sum is σ = 135222. Its totient is φ = 29040.
The previous prime is 72649. The next prime is 72661. The reversal of 72650 is 5627.
It can be written as a sum of positive squares in 3 ways, for example, as 69169 + 3481 = 263^2 + 59^2 .
It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.
It is a nialpdrome in base 5.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 677 + ... + 776.
272650 is an apocalyptic number.
72650 is a deficient number, since it is larger than the sum of its proper divisors (62572).
72650 is a wasteful number, since it uses less digits than its factorization.
72650 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1465 (or 1460 counting only the distinct ones).
The product of its (nonzero) digits is 420, while the sum is 20.
The square root of 72650 is about 269.5366394389. The cubic root of 72650 is about 41.7264918394.
The spelling of 72650 in words is "seventy-two thousand, six hundred fifty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •