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13264225 = 521340813
BaseRepresentation
bin110010100110…
…010101100001
3220221220002121
4302212111201
511343423400
61152144241
7220513132
oct62462541
926856077
1013264225
11753a677
124538081
132995570
141a93c89
15127021a
hexca6561

13264225 has 12 divisors (see below), whose sum is σ = 17713276. Its totient is φ = 9794880.

The previous prime is 13264219. The next prime is 13264243. The reversal of 13264225 is 52246231.

It can be written as a sum of positive squares in 6 ways, for example, as 21904 + 13242321 = 148^2 + 3639^2 .

It is not a de Polignac number, because 13264225 - 25 = 13264193 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13264225.

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 11 ways as a sum of consecutive naturals, for example, 20082 + ... + 20731.

Almost surely, 213264225 is an apocalyptic number.

It is an amenable number.

13264225 is a deficient number, since it is larger than the sum of its proper divisors (4449051).

13264225 is a wasteful number, since it uses less digits than its factorization.

13264225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40836 (or 40831 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 13264225 is about 3642.0083745099. The cubic root of 13264225 is about 236.7158254911.

The spelling of 13264225 in words is "thirteen million, two hundred sixty-four thousand, two hundred twenty-five".

Divisors: 1 5 13 25 65 325 40813 204065 530569 1020325 2652845 13264225