Base | Representation |
---|---|
bin | 101110010000… |
… | …001101010111 |
3 | 211211000101122 |
4 | 232100031113 |
5 | 11101000030 |
6 | 1111514155 |
7 | 205026620 |
oct | 56201527 |
9 | 24730348 |
10 | 12125015 |
11 | 6931781 |
12 | 408895b |
13 | 2686b86 |
14 | 1878a47 |
15 | 10e78e5 |
hex | b90357 |
12125015 has 8 divisors (see below), whose sum is σ = 16628640. Its totient is φ = 8314272.
The previous prime is 12124997. The next prime is 12125023. The reversal of 12125015 is 51052121.
12125015 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 12125015 - 212 = 12120919 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12124984 and 12125002.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173180 + ... + 173249.
It is an arithmetic number, because the mean of its divisors is an integer number (2078580).
Almost surely, 212125015 is an apocalyptic number.
12125015 is a deficient number, since it is larger than the sum of its proper divisors (4503625).
12125015 is an equidigital number, since it uses as much as digits as its factorization.
12125015 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 346441.
The product of its (nonzero) digits is 100, while the sum is 17.
The square root of 12125015 is about 3482.0992231698. The cubic root of 12125015 is about 229.7351393464.
Adding to 12125015 its reverse (51052121), we get a palindrome (63177136).
The spelling of 12125015 in words is "twelve million, one hundred twenty-five thousand, fifteen".
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