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13806668 = 2229412903
BaseRepresentation
bin110100101010…
…110001001100
3221222110012002
4310222301030
512013303133
61211531432
7225232451
oct64526114
927873162
1013806668
117880177
124759b78
132b25435
141b95828
15132ace8
hexd2ac4c

13806668 has 24 divisors (see below), whose sum is σ = 25613280. Its totient is φ = 6500480.

The previous prime is 13806643. The next prime is 13806671. The reversal of 13806668 is 86660831.

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 7 ways as a sum of consecutive naturals, for example, 3305 + ... + 6207.

It is an arithmetic number, because the mean of its divisors is an integer number (1067220).

Almost surely, 213806668 is an apocalyptic number.

It is an amenable number.

13806668 is a deficient number, since it is larger than the sum of its proper divisors (11806612).

13806668 is a wasteful number, since it uses less digits than its factorization.

13806668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977 (or 2975 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 13806668 is about 3715.7324984450. The cubic root of 13806668 is about 239.8996571270.

The spelling of 13806668 in words is "thirteen million, eight hundred six thousand, six hundred sixty-eight".

Divisors: 1 2 4 29 41 58 82 116 164 1189 2378 2903 4756 5806 11612 84187 119023 168374 238046 336748 476092 3451667 6903334 13806668