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13268649 = 315592837
BaseRepresentation
bin110010100111…
…011010101001
3220222010011110
4302213122221
511344044044
61152220533
7220532052
oct62473251
926863143
1013268649
117542a29
12453a749
132997594
141a95729
1512716b9
hexca76a9

13268649 has 8 divisors (see below), whose sum is σ = 17709120. Its totient is φ = 8836976.

The previous prime is 13268627. The next prime is 13268663. The reversal of 13268649 is 94686231.

13268649 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13268649 - 28 = 13268393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13268609) 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 7 ways as a sum of consecutive naturals, for example, 3259 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (2213640).

Almost surely, 213268649 is an apocalyptic number.

It is an amenable number.

13268649 is a deficient number, since it is larger than the sum of its proper divisors (4440471).

13268649 is a wasteful number, since it uses less digits than its factorization.

13268649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399.

The product of its digits is 62208, while the sum is 39.

The square root of 13268649 is about 3642.6156810731. The cubic root of 13268649 is about 236.7421397413.

The spelling of 13268649 in words is "thirteen million, two hundred sixty-eight thousand, six hundred forty-nine".

Divisors: 1 3 1559 2837 4677 8511 4422883 13268649