Base | Representation |
---|---|
bin | 110011000001… |
… | …100011001001 |
3 | 221011112222220 |
4 | 303001203021 |
5 | 11411010224 |
6 | 1154404253 |
7 | 221456115 |
oct | 63014311 |
9 | 27145886 |
10 | 13375689 |
11 | 7606398 |
12 | 4590689 |
13 | 2a04212 |
14 | 1ac2745 |
15 | 1293279 |
hex | cc18c9 |
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 = 3 ⋅32885777.
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".
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