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13056401 = 19687179
BaseRepresentation
bin110001110011…
…100110010001
3220120100000102
4301303212101
511320301101
61143502145
7215656211
oct61634621
926510012
1013056401
117408516
124457955
132921aa7
141a3c241
15122d86b
hexc73991

13056401 has 4 divisors (see below), whose sum is σ = 13743600. Its totient is φ = 12369204.

The previous prime is 13056397. The next prime is 13056413. The reversal of 13056401 is 10465031.

13056401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13056401 - 22 = 13056397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13056431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343571 + ... + 343608.

It is an arithmetic number, because the mean of its divisors is an integer number (3435900).

Almost surely, 213056401 is an apocalyptic number.

It is an amenable number.

13056401 is a deficient number, since it is larger than the sum of its proper divisors (687199).

13056401 is an equidigital number, since it uses as much as digits as its factorization.

13056401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687198.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 13056401 is about 3613.3642218852. The cubic root of 13056401 is about 235.4730233869.

The spelling of 13056401 in words is "thirteen million, fifty-six thousand, four hundred one".

Divisors: 1 19 687179 13056401