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13685051 = 174397193
BaseRepresentation
bin110100001101…
…000100111011
3221202021100202
4310031010323
512000410201
61205152415
7224215052
oct64150473
927667322
1013685051
1177a7866
1246bb70b
132ab1c83
141b63399
151304c6b
hexd0d13b

13685051 has 16 divisors (see below), whose sum is σ = 15057504. Its totient is φ = 12386304.

The previous prime is 13685047. The next prime is 13685053. The reversal of 13685051 is 15058631.

13685051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13685051 - 22 = 13685047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13685053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70811 + ... + 71003.

It is an arithmetic number, because the mean of its divisors is an integer number (941094).

Almost surely, 213685051 is an apocalyptic number.

13685051 is a deficient number, since it is larger than the sum of its proper divisors (1372453).

13685051 is a wasteful number, since it uses less digits than its factorization.

13685051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 13685051 is about 3699.3311557632. The cubic root of 13685051 is about 239.1931877550.

The spelling of 13685051 in words is "thirteen million, six hundred eighty-five thousand, fifty-one".

Divisors: 1 17 43 97 193 731 1649 3281 4171 8299 18721 70907 141083 318257 805003 13685051