Base | Representation |
---|---|
bin | 110000010111… |
… | …111011011111 |
3 | 212212020221222 |
4 | 300113323133 |
5 | 11221242202 |
6 | 1131443555 |
7 | 212533430 |
oct | 60277337 |
9 | 25766858 |
10 | 12680927 |
11 | 7181406 |
12 | 42b65bb |
13 | 281cc0c |
14 | 1981487 |
15 | 11a74a2 |
hex | c17edf |
12680927 has 4 divisors (see below), whose sum is σ = 14492496. Its totient is φ = 10869360.
The previous prime is 12680909. The next prime is 12680933. The reversal of 12680927 is 72908621.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72908621 = 31 ⋅2351891.
It is a cyclic number.
It is not a de Polignac number, because 12680927 - 210 = 12679903 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12680977) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905774 + ... + 905787.
It is an arithmetic number, because the mean of its divisors is an integer number (3623124).
Almost surely, 212680927 is an apocalyptic number.
12680927 is a deficient number, since it is larger than the sum of its proper divisors (1811569).
12680927 is an equidigital number, since it uses as much as digits as its factorization.
12680927 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1811568.
The product of its (nonzero) digits is 12096, while the sum is 35.
The square root of 12680927 is about 3561.0289243420. The cubic root of 12680927 is about 233.1938007035.
The spelling of 12680927 in words is "twelve million, six hundred eighty thousand, nine hundred twenty-seven".
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