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525604 = 221011301
BaseRepresentation
bin10000000010100100100
3222200222211
42000110210
5113304404
615133204
74316242
oct2002444
9880884
10525604
11329992
12214204
13155311
14d9792
15a5b04
hex80524

525604 has 12 divisors (see below), whose sum is σ = 929628. Its totient is φ = 260000.

The previous prime is 525599. The next prime is 525607. The reversal of 525604 is 406525.

It can be written as a sum of positive squares in 2 ways, for example, as 220900 + 304704 = 470^2 + 552^2 .

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525607) by changing a digit.

525604 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247 + ... + 1054.

It is an arithmetic number, because the mean of its divisors is an integer number (77469).

2525604 is an apocalyptic number.

It is an amenable number.

525604 is a deficient number, since it is larger than the sum of its proper divisors (404024).

525604 is a wasteful number, since it uses less digits than its factorization.

525604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1406 (or 1404 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 525604 is about 724.9855170967. The cubic root of 525604 is about 80.7023572988.

The spelling of 525604 in words is "five hundred twenty-five thousand, six hundred four".

Divisors: 1 2 4 101 202 404 1301 2602 5204 131401 262802 525604