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13256044 = 224397549
BaseRepresentation
bin110010100100…
…010101101100
3220221110212121
4302210111230
511343143134
61152042324
7220450234
oct62442554
926843777
1013256044
11753450a
1245333a4
132991919
141a90cc4
15126cab4
hexca456c

13256044 has 12 divisors (see below), whose sum is σ = 23254000. Its totient is φ = 6612048.

The previous prime is 13256029. The next prime is 13256057. The reversal of 13256044 is 44065231.

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 3 ways as a sum of consecutive naturals, for example, 2019 + ... + 5530.

Almost surely, 213256044 is an apocalyptic number.

It is an amenable number.

13256044 is a deficient number, since it is larger than the sum of its proper divisors (9997956).

13256044 is a wasteful number, since it uses less digits than its factorization.

13256044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7992 (or 7990 counting only the distinct ones).

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

The square root of 13256044 is about 3640.8850572354. The cubic root of 13256044 is about 236.6671489333.

The spelling of 13256044 in words is "thirteen million, two hundred fifty-six thousand, forty-four".

Divisors: 1 2 4 439 878 1756 7549 15098 30196 3314011 6628022 13256044