Base | Representation |
---|---|
bin | 101101110101… |
… | …011000010101 |
3 | 211121102122122 |
4 | 231311120111 |
5 | 11033441000 |
6 | 1105305325 |
7 | 204061343 |
oct | 55653025 |
9 | 24542578 |
10 | 12015125 |
11 | 6867161 |
12 | 4035245 |
13 | 2648b55 |
14 | 184a993 |
15 | 10c5085 |
hex | b75615 |
12015125 has 16 divisors (see below), whose sum is σ = 15787200. Its totient is φ = 9104400.
The previous prime is 12015097. The next prime is 12015139. The reversal of 12015125 is 52151021.
It is not a de Polignac number, because 12015125 - 212 = 12011029 is a prime.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 155 + ... + 4904.
It is an arithmetic number, because the mean of its divisors is an integer number (986700).
Almost surely, 212015125 is an apocalyptic number.
It is an amenable number.
12015125 is a deficient number, since it is larger than the sum of its proper divisors (3772075).
12015125 is an equidigital number, since it uses as much as digits as its factorization.
12015125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5093 (or 5083 counting only the distinct ones).
The product of its (nonzero) digits is 100, while the sum is 17.
The square root of 12015125 is about 3466.2840333706. The cubic root of 12015125 is about 229.0389959207.
Adding to 12015125 its reverse (52151021), we get a palindrome (64166146).
The spelling of 12015125 in words is "twelve million, fifteen thousand, one hundred twenty-five".
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