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13065025 = 52522601
BaseRepresentation
bin110001110101…
…101101000001
3220120202211211
4301311231001
511321040100
61144010121
7216023311
oct61655501
926522754
1013065025
117413a46
124460941
1329259ac
141a41441
1512311ba
hexc75b41

13065025 has 6 divisors (see below), whose sum is σ = 16200662. Its totient is φ = 10452000.

The previous prime is 13065007. The next prime is 13065047. The reversal of 13065025 is 52056031.

It is a happy number.

13065025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 169744 + 12895281 = 412^2 + 3591^2 .

It is not a de Polignac number, because 13065025 - 211 = 13062977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13064987 and 13065005.

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, 261276 + ... + 261325.

Almost surely, 213065025 is an apocalyptic number.

It is an amenable number.

13065025 is a deficient number, since it is larger than the sum of its proper divisors (3135637).

13065025 is an equidigital number, since it uses as much as digits as its factorization.

13065025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522611 (or 522606 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13065025 is about 3614.5573726253. The cubic root of 13065025 is about 235.5248567726.

The spelling of 13065025 in words is "thirteen million, sixty-five thousand, twenty-five".

Divisors: 1 5 25 522601 2613005 13065025