Base | Representation |
---|---|
bin | 11010110110110011… |
… | …111111011100001111 |
3 | 2202102200200121022110 |
4 | 122312303333130033 |
5 | 433024220330122 |
6 | 21125242315103 |
7 | 2040414326526 |
oct | 326663773417 |
9 | 82380617273 |
10 | 28836886287 |
11 | 11258741530 |
12 | 57094b8a93 |
13 | 2947417131 |
14 | 1577b9b4bd |
15 | b3b97790c |
hex | 6b6cff70f |
28836886287 has 8 divisors (see below), whose sum is σ = 41944561920. Its totient is φ = 17476900760.
The previous prime is 28836886261. The next prime is 28836886289. The reversal of 28836886287 is 78268863882.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28836886287 - 210 = 28836885263 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28836886289) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436922487 + ... + 436922552.
It is an arithmetic number, because the mean of its divisors is an integer number (5243070240).
Almost surely, 228836886287 is an apocalyptic number.
28836886287 is a deficient number, since it is larger than the sum of its proper divisors (13107675633).
28836886287 is a wasteful number, since it uses less digits than its factorization.
28836886287 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 873845053.
The product of its digits is 99090432, while the sum is 66.
The spelling of 28836886287 in words is "twenty-eight billion, eight hundred thirty-six million, eight hundred eighty-six thousand, two hundred eighty-seven".
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