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13388677 = 67199831
BaseRepresentation
bin110011000100…
…101110000101
3221012012210221
4303010232011
511411414202
61154544341
7221542021
oct63045605
927165727
1013388677
117615125
1245980b1
132a0a0c3
141ac7381
151297037
hexcc4b85

13388677 has 4 divisors (see below), whose sum is σ = 13588576. Its totient is φ = 13188780.

The previous prime is 13388671. The next prime is 13388681. The reversal of 13388677 is 77688331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77688331 = 711098333.

It is a cyclic number.

It is not a de Polignac number, because 13388677 - 27 = 13388549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13388671) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 99849 + ... + 99982.

It is an arithmetic number, because the mean of its divisors is an integer number (3397144).

Almost surely, 213388677 is an apocalyptic number.

It is an amenable number.

13388677 is a deficient number, since it is larger than the sum of its proper divisors (199899).

13388677 is an equidigital number, since it uses as much as digits as its factorization.

13388677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199898.

The product of its digits is 169344, while the sum is 43.

The square root of 13388677 is about 3659.0541127455. The cubic root of 13388677 is about 237.4538532687.

The spelling of 13388677 in words is "thirteen million, three hundred eighty-eight thousand, six hundred seventy-seven".

Divisors: 1 67 199831 13388677