Base | Representation |
---|---|
bin | 110010000001… |
… | …001100111101 |
3 | 220200011110021 |
4 | 302001030331 |
5 | 11324042000 |
6 | 1145012141 |
7 | 216310525 |
oct | 62011475 |
9 | 26604407 |
10 | 13112125 |
11 | 7446374 |
12 | 4484051 |
13 | 2941270 |
14 | 1a54685 |
15 | 124011a |
hex | c8133d |
13112125 has 16 divisors (see below), whose sum is σ = 17624880. Its totient is φ = 9681600.
The previous prime is 13112111. The next prime is 13112129. The reversal of 13112125 is 52121131.
It can be written as a sum of positive squares in 8 ways, for example, as 11115556 + 1996569 = 3334^2 + 1413^2 .
It is not a de Polignac number, because 13112125 - 213 = 13103933 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 13112099 and 13112108.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13112129) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2410 + ... + 5659.
It is an arithmetic number, because the mean of its divisors is an integer number (1101555).
Almost surely, 213112125 is an apocalyptic number.
It is an amenable number.
13112125 is a deficient number, since it is larger than the sum of its proper divisors (4512755).
13112125 is an equidigital number, since it uses as much as digits as its factorization.
13112125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8097 (or 8087 counting only the distinct ones).
The product of its digits is 60, while the sum is 16.
The square root of 13112125 is about 3621.0668317500. The cubic root of 13112125 is about 235.8075432292.
Adding to 13112125 its reverse (52121131), we get a palindrome (65233256).
The spelling of 13112125 in words is "thirteen million, one hundred twelve thousand, one hundred twenty-five".
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