Base | Representation |
---|---|
bin | 101111101110… |
… | …101101101011 |
3 | 212112200101101 |
4 | 233232231223 |
5 | 11200341412 |
6 | 1124102231 |
7 | 211231306 |
oct | 57565553 |
9 | 25480341 |
10 | 12512107 |
11 | 7076593 |
12 | 4234977 |
13 | 279111a |
14 | 1939b3d |
15 | 1172457 |
hex | beeb6b |
12512107 has 2 divisors, whose sum is σ = 12512108. Its totient is φ = 12512106.
The previous prime is 12512083. The next prime is 12512111. The reversal of 12512107 is 70121521.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12512107 - 211 = 12510059 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (12512147) 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, 6256053 + 6256054.
It is an arithmetic number, because the mean of its divisors is an integer number (6256054).
Almost surely, 212512107 is an apocalyptic number.
12512107 is a deficient number, since it is larger than the sum of its proper divisors (1).
12512107 is an equidigital number, since it uses as much as digits as its factorization.
12512107 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 140, while the sum is 19.
The square root of 12512107 is about 3537.2456799041. The cubic root of 12512107 is about 232.1543451244.
Adding to 12512107 its reverse (70121521), we get a palindrome (82633628).
The spelling of 12512107 in words is "twelve million, five hundred twelve thousand, one hundred seven".
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