Base | Representation |
---|---|
bin | 110001001011… |
… | …001100000010 |
3 | 220020220222002 |
4 | 301023030002 |
5 | 11300002012 |
6 | 1140144002 |
7 | 214366514 |
oct | 61131402 |
9 | 26226862 |
10 | 12890882 |
11 | 7305124 |
12 | 4398002 |
13 | 2894654 |
14 | 19d7bb4 |
15 | 11e97c2 |
hex | c4b302 |
12890882 has 4 divisors (see below), whose sum is σ = 19336326. Its totient is φ = 6445440.
The previous prime is 12890869. The next prime is 12890887. The reversal of 12890882 is 28809821.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28809821 = 103 ⋅279707.
It can be written as a sum of positive squares in only one way, i.e., 7958041 + 4932841 = 2821^2 + 2221^2 .
It is not an unprimeable number, because it can be changed into a prime (12890887) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222719 + ... + 3222722.
Almost surely, 212890882 is an apocalyptic number.
12890882 is a deficient number, since it is larger than the sum of its proper divisors (6445444).
12890882 is an equidigital number, since it uses as much as digits as its factorization.
12890882 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6445443.
The product of its (nonzero) digits is 18432, while the sum is 38.
The square root of 12890882 is about 3590.3874442739. The cubic root of 12890882 is about 234.4737401321.
The spelling of 12890882 in words is "twelve million, eight hundred ninety thousand, eight hundred eighty-two".
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