Search a number
-
+
632725 = 5225309
BaseRepresentation
bin10011010011110010101
31012010221021
42122132111
5130221400
621321141
75243452
oct2323625
91163837
10632725
113a2415
122661b1
13191cc2
14126829
15c771a
hex9a795

632725 has 6 divisors (see below), whose sum is σ = 784610. Its totient is φ = 506160.

The previous prime is 632717. The next prime is 632743. The reversal of 632725 is 527236.

It can be written as a sum of positive squares in 3 ways, for example, as 56644 + 576081 = 238^2 + 759^2 .

It is not a de Polignac number, because 632725 - 23 = 632717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 25309 = 632725 / (6 + 3 + 2 + 7 + 2 + 5).

It is a d-powerful number, because it can be written as 62 + 39 + 74 + 213 + 219 + 57 .

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 632725.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12630 + ... + 12679.

2632725 is an apocalyptic number.

It is an amenable number.

632725 is a deficient number, since it is larger than the sum of its proper divisors (151885).

632725 is a wasteful number, since it uses less digits than its factorization.

632725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25319 (or 25314 counting only the distinct ones).

The product of its digits is 2520, while the sum is 25.

The square root of 632725 is about 795.4401297395. The cubic root of 632725 is about 85.8496109722.

The spelling of 632725 in words is "six hundred thirty-two thousand, seven hundred twenty-five".

Divisors: 1 5 25 25309 126545 632725