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634534525 = 52131193751
BaseRepresentation
bin100101110100100…
…011101001111101
31122012222200201201
4211310203221331
52244420101100
6142544135501
721503311612
oct4564435175
91565880651
10634534525
112a61a61a9
12158607591
13a15ca821
14603b6509
153aa9036a
hex25d23a7d

634534525 has 12 divisors (see below), whose sum is σ = 792833184. Its totient is φ = 503750000.

The previous prime is 634534519. The next prime is 634534547. The reversal of 634534525 is 525435436.

It is not a de Polignac number, because 634534525 - 23 = 634534517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93601 + ... + 100150.

It is an arithmetic number, because the mean of its divisors is an integer number (66069432).

Almost surely, 2634534525 is an apocalyptic number.

It is an amenable number.

634534525 is a deficient number, since it is larger than the sum of its proper divisors (158298659).

634534525 is a wasteful number, since it uses less digits than its factorization.

634534525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193892 (or 193887 counting only the distinct ones).

The product of its digits is 216000, while the sum is 37.

The square root of 634534525 is about 25189.9687375749. The cubic root of 634534525 is about 859.3137327562.

The spelling of 634534525 in words is "six hundred thirty-four million, five hundred thirty-four thousand, five hundred twenty-five".

Divisors: 1 5 25 131 655 3275 193751 968755 4843775 25381381 126906905 634534525