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13388308 = 224377839
BaseRepresentation
bin110011000100…
…101000010100
3221012012022021
4303010220110
511411411213
61154542524
7221540653
oct63045024
927165267
1013388308
11761491a
124597a44
132a09b9b
141ac719a
151296d8d
hexcc4a14

13388308 has 12 divisors (see below), whose sum is σ = 23974720. Its totient is φ = 6538392.

The previous prime is 13388269. The next prime is 13388321. The reversal of 13388308 is 80388331.

It is a super-2 number, since 2×133883082 = 358493582205728, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38748 + ... + 39091.

Almost surely, 213388308 is an apocalyptic number.

It is an amenable number.

13388308 is a deficient number, since it is larger than the sum of its proper divisors (10586412).

13388308 is a wasteful number, since it uses less digits than its factorization.

13388308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77886 (or 77884 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 13388308 is about 3659.0036895308. The cubic root of 13388308 is about 237.4516717916.

The spelling of 13388308 in words is "thirteen million, three hundred eighty-eight thousand, three hundred eight".

Divisors: 1 2 4 43 86 172 77839 155678 311356 3347077 6694154 13388308