Base | Representation |
---|---|
bin | 110001100101… |
… | …111100001011 |
3 | 220110111021111 |
4 | 301211330023 |
5 | 11312003314 |
6 | 1142351151 |
7 | 215334133 |
oct | 61457413 |
9 | 26414244 |
10 | 13000459 |
11 | 737a48a |
12 | 442b4b7 |
13 | 29024a4 |
14 | 1a25ac3 |
15 | 121bec4 |
hex | c65f0b |
13000459 has 4 divisors (see below), whose sum is σ = 13010680. Its totient is φ = 12990240.
The previous prime is 13000457. The next prime is 13000469. The reversal of 13000459 is 95400031.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 95400031 = 1283 ⋅74357.
It is a cyclic number.
It is not a de Polignac number, because 13000459 - 21 = 13000457 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (13000457) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2877 + ... + 5854.
It is an arithmetic number, because the mean of its divisors is an integer number (3252670).
Almost surely, 213000459 is an apocalyptic number.
13000459 is a deficient number, since it is larger than the sum of its proper divisors (10221).
13000459 is an equidigital number, since it uses as much as digits as its factorization.
13000459 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 10220.
The product of its (nonzero) digits is 540, while the sum is 22.
The square root of 13000459 is about 3605.6149267497. The cubic root of 13000459 is about 235.1362360796.
The spelling of 13000459 in words is "thirteen million, four hundred fifty-nine", and thus it is an aban number.
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