Base | Representation |
---|---|
bin | 110000110111… |
… | …001010100100 |
3 | 220002202110112 |
4 | 300313022210 |
5 | 11234340433 |
6 | 1134312152 |
7 | 213605432 |
oct | 60671244 |
9 | 26082415 |
10 | 12808868 |
11 | 7259546 |
12 | 4358658 |
13 | 2866217 |
14 | 19b5d52 |
15 | 11d0348 |
hex | c372a4 |
12808868 has 6 divisors (see below), whose sum is σ = 22415526. Its totient is φ = 6404432.
The previous prime is 12808853. The next prime is 12808891. The reversal of 12808868 is 86880821.
It can be written as a sum of positive squares in only one way, i.e., 9597604 + 3211264 = 3098^2 + 1792^2 .
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1601105 + ... + 1601112.
It is an arithmetic number, because the mean of its divisors is an integer number (3735921).
Almost surely, 212808868 is an apocalyptic number.
It is an amenable number.
12808868 is a deficient number, since it is larger than the sum of its proper divisors (9606658).
12808868 is a wasteful number, since it uses less digits than its factorization.
12808868 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3202221 (or 3202219 counting only the distinct ones).
The product of its (nonzero) digits is 49152, while the sum is 41.
The square root of 12808868 is about 3578.9478900928. The cubic root of 12808868 is about 233.9754278140.
The spelling of 12808868 in words is "twelve million, eight hundred eight thousand, eight hundred sixty-eight".
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