Base | Representation |
---|---|
bin | 101111011001… |
… | …101100000011 |
3 | 212101022020202 |
4 | 233121230003 |
5 | 11140112422 |
6 | 1122155415 |
7 | 210422240 |
oct | 57315403 |
9 | 25338222 |
10 | 12425987 |
11 | 7017912 |
12 | 41b2b6b |
13 | 2760b72 |
14 | 19165c7 |
15 | 1156b92 |
hex | bd9b03 |
12425987 has 8 divisors (see below), whose sum is σ = 14396256. Its totient is φ = 10504512.
The previous prime is 12425977. The next prime is 12425999. The reversal of 12425987 is 78952421.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12425987 - 28 = 12425731 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12425987.
It is not an unprimeable number, because it can be changed into a prime (12425927) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11648 + ... + 12669.
It is an arithmetic number, because the mean of its divisors is an integer number (1799532).
Almost surely, 212425987 is an apocalyptic number.
12425987 is a deficient number, since it is larger than the sum of its proper divisors (1970269).
12425987 is an equidigital number, since it uses as much as digits as its factorization.
12425987 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 24397.
The product of its digits is 40320, while the sum is 38.
The square root of 12425987 is about 3525.0513471438. The cubic root of 12425987 is about 231.6204840974.
The spelling of 12425987 in words is "twelve million, four hundred twenty-five thousand, nine hundred eighty-seven".
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