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13806684 = 2232383519
BaseRepresentation
bin110100101010…
…110001011100
3221222110012200
4310222301130
512013303214
61211531500
7225232503
oct64526134
927873180
1013806684
117880191
124759b90
132b25448
141b9583a
15132ad09
hexd2ac5c

13806684 has 18 divisors (see below), whose sum is σ = 34900320. Its totient is φ = 4602216.

The previous prime is 13806671. The next prime is 13806691. The reversal of 13806684 is 48660831.

It is a happy number.

13806684 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 383519 = 13806684 / (1 + 3 + 8 + 0 + 6 + 6 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191724 + ... + 191795.

Almost surely, 213806684 is an apocalyptic number.

It is an amenable number.

13806684 is an abundant number, since it is smaller than the sum of its proper divisors (21093636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13806684 is a wasteful number, since it uses less digits than its factorization.

13806684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383529 (or 383524 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 13806684 is about 3715.7346514518. The cubic root of 13806684 is about 239.8997497971.

The spelling of 13806684 in words is "thirteen million, eight hundred six thousand, six hundred eighty-four".

Divisors: 1 2 3 4 6 9 12 18 36 383519 767038 1150557 1534076 2301114 3451671 4602228 6903342 13806684