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13138867 = 75773253
BaseRepresentation
bin110010000111…
…101110110011
3220201112010201
4302013232303
511330420432
61145340031
7216451510
oct62075663
926645121
1013138867
117464475
124497617
1329504a1
141a60307
151247ee7
hexc87bb3

13138867 has 8 divisors (see below), whose sum is σ = 15046496. Its totient is φ = 11238912.

The previous prime is 13138837. The next prime is 13138877. The reversal of 13138867 is 76883131.

13138867 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13138867 - 211 = 13136819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13138837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2413 + ... + 5665.

It is an arithmetic number, because the mean of its divisors is an integer number (1880812).

Almost surely, 213138867 is an apocalyptic number.

13138867 is a deficient number, since it is larger than the sum of its proper divisors (1907629).

13138867 is an equidigital number, since it uses as much as digits as its factorization.

13138867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3837.

The product of its digits is 24192, while the sum is 37.

The square root of 13138867 is about 3624.7575091308. The cubic root of 13138867 is about 235.9677431255.

The spelling of 13138867 in words is "thirteen million, one hundred thirty-eight thousand, eight hundred sixty-seven".

Divisors: 1 7 577 3253 4039 22771 1876981 13138867