Base | Representation |
---|---|
bin | 110010000001… |
… | …001100110001 |
3 | 220200011102211 |
4 | 302001030301 |
5 | 11324041423 |
6 | 1145012121 |
7 | 216310510 |
oct | 62011461 |
9 | 26604384 |
10 | 13112113 |
11 | 7446363 |
12 | 4484041 |
13 | 2941261 |
14 | 1a54677 |
15 | 124010d |
hex | c81331 |
13112113 has 4 divisors (see below), whose sum is σ = 14985280. Its totient is φ = 11238948.
The previous prime is 13112111. The next prime is 13112129. The reversal of 13112113 is 31121131.
13112113 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
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: 31121131 = 2137 ⋅14563.
It is not a de Polignac number, because 13112113 - 21 = 13112111 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 13112093 and 13112102.
It is not an unprimeable number, because it can be changed into a prime (13112111) 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, 936573 + ... + 936586.
It is an arithmetic number, because the mean of its divisors is an integer number (3746320).
Almost surely, 213112113 is an apocalyptic number.
It is an amenable number.
13112113 is a deficient number, since it is larger than the sum of its proper divisors (1873167).
13112113 is an equidigital number, since it uses as much as digits as its factorization.
13112113 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1873166.
The product of its digits is 18, while the sum is 13.
The square root of 13112113 is about 3621.0651747794. The cubic root of 13112113 is about 235.8074712935.
Adding to 13112113 its reverse (31121131), we get a palindrome (44233244).
It can be divided in two parts, 13112 and 113, that added together give a square (13225 = 1152).
The spelling of 13112113 in words is "thirteen million, one hundred twelve thousand, one hundred thirteen".
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