Base | Representation |
---|---|
bin | 110000010101… |
… | …110010000011 |
3 | 212211210220012 |
4 | 300111302003 |
5 | 11221002011 |
6 | 1131335135 |
7 | 212465663 |
oct | 60256203 |
9 | 25753805 |
10 | 12672131 |
11 | 717583a |
12 | 42b14ab |
13 | 2818c04 |
14 | 197c1a3 |
15 | 11a4a8b |
hex | c15c83 |
12672131 has 2 divisors, whose sum is σ = 12672132. Its totient is φ = 12672130.
The previous prime is 12672119. The next prime is 12672133. The reversal of 12672131 is 13127621.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12672131 - 26 = 12672067 is a prime.
It is a super-2 number, since 2×126721312 = 321165808162322, which contains 22 as substring.
Together with 12672133, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 12672097 and 12672106.
It is not a weakly prime, because it can be changed into another prime (12672133) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6336065 + 6336066.
It is an arithmetic number, because the mean of its divisors is an integer number (6336066).
Almost surely, 212672131 is an apocalyptic number.
12672131 is a deficient number, since it is larger than the sum of its proper divisors (1).
12672131 is an equidigital number, since it uses as much as digits as its factorization.
12672131 is an evil number, because the sum of its binary digits is even.
The product of its digits is 504, while the sum is 23.
The square root of 12672131 is about 3559.7936737963. The cubic root of 12672131 is about 233.1398707053.
Adding to 12672131 its reverse (13127621), we get a palindrome (25799752).
The spelling of 12672131 in words is "twelve million, six hundred seventy-two thousand, one hundred thirty-one".
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