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3115925 = 52235419
BaseRepresentation
bin1011111000101110010101
312212022020122
423320232111
51244202200
6150441325
735325221
oct13705625
95768218
103115925
11183904a
121063245
13851357
145b1781
15418385
hex2f8b95

3115925 has 12 divisors (see below), whose sum is σ = 4032480. Its totient is φ = 2383920.

The previous prime is 3115921. The next prime is 3115927. The reversal of 3115925 is 5295113.

It is not a de Polignac number, because 3115925 - 22 = 3115921 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3115894 and 3115903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2135 + ... + 3284.

It is an arithmetic number, because the mean of its divisors is an integer number (336040).

Almost surely, 23115925 is an apocalyptic number.

It is an amenable number.

3115925 is a deficient number, since it is larger than the sum of its proper divisors (916555).

3115925 is a wasteful number, since it uses less digits than its factorization.

3115925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5452 (or 5447 counting only the distinct ones).

The product of its digits is 1350, while the sum is 26.

The square root of 3115925 is about 1765.1982891449. The cubic root of 3115925 is about 146.0592272369.

The spelling of 3115925 in words is "three million, one hundred fifteen thousand, nine hundred twenty-five".

Divisors: 1 5 23 25 115 575 5419 27095 124637 135475 623185 3115925