Base | Representation |
---|---|
bin | 110001000111… |
… | …010100000111 |
3 | 220020010012102 |
4 | 301013110013 |
5 | 11244000030 |
6 | 1135542315 |
7 | 214302326 |
oct | 61072407 |
9 | 26203172 |
10 | 12875015 |
11 | 72a420a |
12 | 438a99b |
13 | 288a36a |
14 | 19d20bd |
15 | 11e4c45 |
hex | c47507 |
12875015 has 8 divisors (see below), whose sum is σ = 15553248. Its totient is φ = 10231200.
The previous prime is 12875003. The next prime is 12875021. The reversal of 12875015 is 51057821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 12875015 - 212 = 12870919 is a prime.
It is a super-2 number, since 2×128750152 = 331532022500450, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7772 + ... + 9281.
It is an arithmetic number, because the mean of its divisors is an integer number (1944156).
Almost surely, 212875015 is an apocalyptic number.
12875015 is a deficient number, since it is larger than the sum of its proper divisors (2678233).
12875015 is a wasteful number, since it uses less digits than its factorization.
12875015 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17209.
The product of its (nonzero) digits is 2800, while the sum is 29.
The square root of 12875015 is about 3588.1771138003. The cubic root of 12875015 is about 234.3774984030.
The spelling of 12875015 in words is "twelve million, eight hundred seventy-five thousand, fifteen".
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