Base | Representation |
---|---|
bin | 101110101100… |
… | …110111110111 |
3 | 212000222110002 |
4 | 232230313313 |
5 | 11113224143 |
6 | 1114221515 |
7 | 206026124 |
oct | 56546767 |
9 | 25028402 |
10 | 12242423 |
11 | 6a01a06 |
12 | 412489b |
13 | 26c844b |
14 | 18a974b |
15 | 111c5b8 |
hex | bacdf7 |
12242423 has 2 divisors, whose sum is σ = 12242424. Its totient is φ = 12242422.
The previous prime is 12242359. The next prime is 12242429. The reversal of 12242423 is 32424221.
It is a strong prime.
It is an emirp because it is prime and its reverse (32424221) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 12242423 - 26 = 12242359 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12242395 and 12242404.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12242429) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6121211 + 6121212.
It is an arithmetic number, because the mean of its divisors is an integer number (6121212).
Almost surely, 212242423 is an apocalyptic number.
12242423 is a deficient number, since it is larger than the sum of its proper divisors (1).
12242423 is an equidigital number, since it uses as much as digits as its factorization.
12242423 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 768, while the sum is 20.
The square root of 12242423 is about 3498.9174039980. The cubic root of 12242423 is about 230.4742765340.
Adding to 12242423 its reverse (32424221), we get a palindrome (44666644).
The spelling of 12242423 in words is "twelve million, two hundred forty-two thousand, four hundred twenty-three".
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