Base | Representation |
---|---|
bin | 110001100001… |
… | …000000101011 |
3 | 220102110120122 |
4 | 301201000223 |
5 | 11310332032 |
6 | 1142113455 |
7 | 215221226 |
oct | 61410053 |
9 | 26373518 |
10 | 12980267 |
11 | 73662a3 |
12 | 441b88b |
13 | 28c6241 |
14 | 1a1c5bd |
15 | 1216012 |
hex | c6102b |
12980267 has 4 divisors (see below), whose sum is σ = 13022856. Its totient is φ = 12937680.
The previous prime is 12980263. The next prime is 12980269. The reversal of 12980267 is 76208921.
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: 76208921 = 2711 ⋅28111.
It is a cyclic number.
It is not a de Polignac number, because 12980267 - 22 = 12980263 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (12980263) 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, 20834 + ... + 21447.
It is an arithmetic number, because the mean of its divisors is an integer number (3255714).
Almost surely, 212980267 is an apocalyptic number.
12980267 is a deficient number, since it is larger than the sum of its proper divisors (42589).
12980267 is an equidigital number, since it uses as much as digits as its factorization.
12980267 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 42588.
The product of its (nonzero) digits is 12096, while the sum is 35.
The square root of 12980267 is about 3602.8137614925. The cubic root of 12980267 is about 235.0144370186.
The spelling of 12980267 in words is "twelve million, nine hundred eighty thousand, two hundred sixty-seven".
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