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13806475 = 52552259
BaseRepresentation
bin110100101010…
…101110001011
3221222102220221
4310222232023
512013301400
61211530511
7225232054
oct64525613
927872827
1013806475
117880011
124759a37
132b25317
141b9572b
15132ac1a
hexd2ab8b

13806475 has 6 divisors (see below), whose sum is σ = 17120060. Its totient is φ = 11045160.

The previous prime is 13806473. The next prime is 13806487. The reversal of 13806475 is 57460831.

It is not a de Polignac number, because 13806475 - 21 = 13806473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13806475.

It is not an unprimeable number, because it can be changed into a prime (13806473) 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 5 ways as a sum of consecutive naturals, for example, 276105 + ... + 276154.

Almost surely, 213806475 is an apocalyptic number.

13806475 is a deficient number, since it is larger than the sum of its proper divisors (3313585).

13806475 is an equidigital number, since it uses as much as digits as its factorization.

13806475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552269 (or 552264 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 13806475 is about 3715.7065277010. The cubic root of 13806475 is about 239.8985392892.

The spelling of 13806475 in words is "thirteen million, eight hundred six thousand, four hundred seventy-five".

Divisors: 1 5 25 552259 2761295 13806475