Base | Representation |
---|---|
bin | 110000011011… |
… | …110010001011 |
3 | 212220001121201 |
4 | 300123302023 |
5 | 11222243330 |
6 | 1132045031 |
7 | 212630443 |
oct | 60336213 |
9 | 25801551 |
10 | 12696715 |
11 | 7192259 |
12 | 4303777 |
13 | 2827165 |
14 | 1987123 |
15 | 11abeca |
hex | c1bc8b |
12696715 has 4 divisors (see below), whose sum is σ = 15236064. Its totient is φ = 10157368.
The previous prime is 12696709. The next prime is 12696781. The reversal of 12696715 is 51769621.
12696715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51769621 = 4889 ⋅10589.
It is a cyclic number.
It is not a de Polignac number, because 12696715 - 25 = 12696683 is a prime.
It is a super-2 number, since 2×126967152 = 322413143582450, which contains 22 as substring.
It is a Duffinian number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269667 + ... + 1269676.
It is an arithmetic number, because the mean of its divisors is an integer number (3809016).
Almost surely, 212696715 is an apocalyptic number.
12696715 is a deficient number, since it is larger than the sum of its proper divisors (2539349).
12696715 is an equidigital number, since it uses as much as digits as its factorization.
12696715 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2539348.
The product of its digits is 22680, while the sum is 37.
The square root of 12696715 is about 3563.2450098190. The cubic root of 12696715 is about 233.2905375027.
The spelling of 12696715 in words is "twelve million, six hundred ninety-six thousand, seven hundred fifteen".
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