Base | Representation |
---|---|
bin | 101111101001… |
… | …010111111101 |
3 | 212111120101101 |
4 | 233221113331 |
5 | 11144141422 |
6 | 1123413101 |
7 | 211110454 |
oct | 57512775 |
9 | 25446341 |
10 | 12490237 |
11 | 7061111 |
12 | 4224191 |
13 | 2784196 |
14 | 1931b9b |
15 | 116ac27 |
hex | be95fd |
12490237 has 2 divisors, whose sum is σ = 12490238. Its totient is φ = 12490236.
The previous prime is 12490187. The next prime is 12490243. The reversal of 12490237 is 73209421.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 8826841 + 3663396 = 2971^2 + 1914^2 .
It is a cyclic number.
It is not a de Polignac number, because 12490237 - 219 = 11965949 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12490537) 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, 6245118 + 6245119.
It is an arithmetic number, because the mean of its divisors is an integer number (6245119).
Almost surely, 212490237 is an apocalyptic number.
It is an amenable number.
12490237 is a deficient number, since it is larger than the sum of its proper divisors (1).
12490237 is an equidigital number, since it uses as much as digits as its factorization.
12490237 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3024, while the sum is 28.
The square root of 12490237 is about 3534.1529395316. The cubic root of 12490237 is about 232.0190048343.
Adding to 12490237 its reverse (73209421), we get a palindrome (85699658).
The spelling of 12490237 in words is "twelve million, four hundred ninety thousand, two hundred thirty-seven".
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