Base | Representation |
---|---|
bin | 110001111111… |
… | …000000010011 |
3 | 220122201002212 |
4 | 301333000103 |
5 | 11323244443 |
6 | 1144502335 |
7 | 216242345 |
oct | 61770023 |
9 | 26581085 |
10 | 13103123 |
11 | 743a630 |
12 | 447a9ab |
13 | 293a137 |
14 | 1a51295 |
15 | 123c618 |
hex | c7f013 |
13103123 has 16 divisors (see below), whose sum is σ = 15158016. Its totient is φ = 11209440.
The previous prime is 13103087. The next prime is 13103147. The reversal of 13103123 is 32130131.
13103123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 13103123 - 210 = 13102099 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13103098 and 13103107.
It is not an unprimeable number, because it can be changed into a prime (13103023) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16565 + ... + 17337.
It is an arithmetic number, because the mean of its divisors is an integer number (947376).
Almost surely, 213103123 is an apocalyptic number.
13103123 is a deficient number, since it is larger than the sum of its proper divisors (2054893).
13103123 is a wasteful number, since it uses less digits than its factorization.
13103123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 874.
The product of its (nonzero) digits is 54, while the sum is 14.
The square root of 13103123 is about 3619.8236144873. The cubic root of 13103123 is about 235.7535670946.
Adding to 13103123 its reverse (32130131), we get a palindrome (45233254).
The spelling of 13103123 in words is "thirteen million, one hundred three thousand, one hundred twenty-three".
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