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13804407 = 325925997
BaseRepresentation
bin110100101010…
…001101110111
3221222100002100
4310222031313
512013220112
61211513143
7225223041
oct64521567
927870070
1013804407
117879501
1247587b3
132b243b6
141b94a91
15132a2dc
hexd2a377

13804407 has 12 divisors (see below), whose sum is σ = 20278440. Its totient is φ = 9046608.

The previous prime is 13804379. The next prime is 13804409. The reversal of 13804407 is 70440831.

It is not a de Polignac number, because 13804407 - 214 = 13788023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13804409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12468 + ... + 13529.

It is an arithmetic number, because the mean of its divisors is an integer number (1689870).

Almost surely, 213804407 is an apocalyptic number.

13804407 is a deficient number, since it is larger than the sum of its proper divisors (6474033).

13804407 is a wasteful number, since it uses less digits than its factorization.

13804407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26062 (or 26059 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 13804407 is about 3715.4282391132. The cubic root of 13804407 is about 239.8865609734.

The spelling of 13804407 in words is "thirteen million, eight hundred four thousand, four hundred seven".

Divisors: 1 3 9 59 177 531 25997 77991 233973 1533823 4601469 13804407