Base | Representation |
---|---|
bin | 110001111010… |
… | …000100000101 |
3 | 220121200100022 |
4 | 301322010011 |
5 | 11322123020 |
6 | 1144224525 |
7 | 216126344 |
oct | 61720405 |
9 | 26550308 |
10 | 13082885 |
11 | 7426402 |
12 | 446b145 |
13 | 2930b6a |
14 | 1a47b5b |
15 | 1236625 |
hex | c7a105 |
13082885 has 4 divisors (see below), whose sum is σ = 15699468. Its totient is φ = 10466304.
The previous prime is 13082863. The next prime is 13082903. The reversal of 13082885 is 58828031.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58828031 = 149 ⋅394819.
It can be written as a sum of positive squares in 2 ways, for example, as 4661281 + 8421604 = 2159^2 + 2902^2 .
It is a cyclic number.
It is not a de Polignac number, because 13082885 - 216 = 13017349 is a prime.
It is a Duffinian number.
It is a congruent 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, 1308284 + ... + 1308293.
It is an arithmetic number, because the mean of its divisors is an integer number (3924867).
Almost surely, 213082885 is an apocalyptic number.
It is an amenable number.
13082885 is a deficient number, since it is larger than the sum of its proper divisors (2616583).
13082885 is an equidigital number, since it uses as much as digits as its factorization.
13082885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2616582.
The product of its (nonzero) digits is 15360, while the sum is 35.
The square root of 13082885 is about 3617.0270941755. The cubic root of 13082885 is about 235.6321293989.
The spelling of 13082885 in words is "thirteen million, eighty-two thousand, eight hundred eighty-five".
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