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13268788 = 22131092341
BaseRepresentation
bin110010100111…
…011100110100
3220222010100121
4302213130310
511344100123
61152221324
7220532341
oct62473464
926863317
1013268788
117543045
12453a844
132997670
141a957c8
15127175d
hexca7734

13268788 has 24 divisors (see below), whose sum is σ = 25246760. Its totient is φ = 6065280.

The previous prime is 13268777. The next prime is 13268791. The reversal of 13268788 is 88786231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1790244 + 11478544 = 1338^2 + 3388^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4498 + ... + 6838.

Almost surely, 213268788 is an apocalyptic number.

It is an amenable number.

13268788 is a deficient number, since it is larger than the sum of its proper divisors (11977972).

13268788 is a wasteful number, since it uses less digits than its factorization.

13268788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467 (or 2465 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 13268788 is about 3642.6347607192. The cubic root of 13268788 is about 236.7429664279.

The spelling of 13268788 in words is "thirteen million, two hundred sixty-eight thousand, seven hundred eighty-eight".

Divisors: 1 2 4 13 26 52 109 218 436 1417 2341 2834 4682 5668 9364 30433 60866 121732 255169 510338 1020676 3317197 6634394 13268788