Base | Representation |
---|---|
bin | 101111110001… |
… | …111001100101 |
3 | 212120100021201 |
4 | 233301321211 |
5 | 11201301112 |
6 | 1124242501 |
7 | 211314331 |
oct | 57617145 |
9 | 25510251 |
10 | 12525157 |
11 | 7085377 |
12 | 4240431 |
13 | 2797048 |
14 | 19407c1 |
15 | 1176257 |
hex | bf1e65 |
12525157 has 2 divisors, whose sum is σ = 12525158. Its totient is φ = 12525156.
The previous prime is 12525137. The next prime is 12525173. The reversal of 12525157 is 75152521.
12525157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6305121 + 6220036 = 2511^2 + 2494^2 .
It is an emirp because it is prime and its reverse (75152521) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12525157 is a prime.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12525127) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6262578 + 6262579.
It is an arithmetic number, because the mean of its divisors is an integer number (6262579).
Almost surely, 212525157 is an apocalyptic number.
It is an amenable number.
12525157 is a deficient number, since it is larger than the sum of its proper divisors (1).
12525157 is an equidigital number, since it uses as much as digits as its factorization.
12525157 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 3500, while the sum is 28.
The square root of 12525157 is about 3539.0898547508. The cubic root of 12525157 is about 232.2350286183.
Adding to 12525157 its reverse (75152521), we get a palindrome (87677678).
The spelling of 12525157 in words is "twelve million, five hundred twenty-five thousand, one hundred fifty-seven".
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