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13388018 = 271576091
BaseRepresentation
bin110011000100…
…100011110010
3221012011220112
4303010203302
511411404033
61154541322
7221540060
oct63044362
927164815
1013388018
117614686
124597842
132a09a07
141ac7030
151296c48
hexcc48f2

13388018 has 16 divisors (see below), whose sum is σ = 23100864. Its totient is φ = 5700240.

The previous prime is 13388009. The next prime is 13388021. The reversal of 13388018 is 81088331.

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, 848 + ... + 5243.

It is an arithmetic number, because the mean of its divisors is an integer number (1443804).

Almost surely, 213388018 is an apocalyptic number.

13388018 is a deficient number, since it is larger than the sum of its proper divisors (9712846).

13388018 is a wasteful number, since it uses less digits than its factorization.

13388018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 13388018 is about 3658.9640610424. The cubic root of 13388018 is about 237.4499573235.

The spelling of 13388018 in words is "thirteen million, three hundred eighty-eight thousand, eighteen".

Divisors: 1 2 7 14 157 314 1099 2198 6091 12182 42637 85274 956287 1912574 6694009 13388018