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13375689 = 34458563
BaseRepresentation
bin110011000001…
…100011001001
3221011112222220
4303001203021
511411010224
61154404253
7221456115
oct63014311
927145886
1013375689
117606398
124590689
132a04212
141ac2745
151293279
hexcc18c9

13375689 has 4 divisors (see below), whose sum is σ = 17834256. Its totient is φ = 8917124.

The previous prime is 13375669. The next prime is 13375693. The reversal of 13375689 is 98657331.

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: 98657331 = 332885777.

It is a cyclic number.

It is not a de Polignac number, because 13375689 - 25 = 13375657 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13375689.

It is not an unprimeable number, because it can be changed into a prime (13375669) 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, 2229279 + ... + 2229284.

It is an arithmetic number, because the mean of its divisors is an integer number (4458564).

Almost surely, 213375689 is an apocalyptic number.

It is an amenable number.

13375689 is a deficient number, since it is larger than the sum of its proper divisors (4458567).

13375689 is an equidigital number, since it uses as much as digits as its factorization.

13375689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458566.

The product of its digits is 136080, while the sum is 42.

The square root of 13375689 is about 3657.2789065096. The cubic root of 13375689 is about 237.3770458681.

The spelling of 13375689 in words is "thirteen million, three hundred seventy-five thousand, six hundred eighty-nine".

Divisors: 1 3 4458563 13375689