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13904916 = 2231158743
BaseRepresentation
bin110101000010…
…110000010100
3222011102221220
4311002300110
512024424131
61214010340
7226122054
oct65026024
928142856
1013904916
117937a73
1247a69b0
132b5b07c
141bbd564
151349e96
hexd42c14

13904916 has 12 divisors (see below), whose sum is σ = 32444832. Its totient is φ = 4634968.

The previous prime is 13904911. The next prime is 13904923. The reversal of 13904916 is 61940931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13904911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579360 + ... + 579383.

It is an arithmetic number, because the mean of its divisors is an integer number (2703736).

Almost surely, 213904916 is an apocalyptic number.

It is an amenable number.

13904916 is an abundant number, since it is smaller than the sum of its proper divisors (18539916).

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

13904916 is a wasteful number, since it uses less digits than its factorization.

13904916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158750 (or 1158748 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 13904916 is about 3728.9296051280. The cubic root of 13904916 is about 240.4673532189.

The spelling of 13904916 in words is "thirteen million, nine hundred four thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 1158743 2317486 3476229 4634972 6952458 13904916