Base | Representation |
---|---|
bin | 11010001010010101… |
… | …011010011011010111 |
3 | 2200111200120000220221 |
4 | 122022111122123113 |
5 | 430012203012410 |
6 | 20523224335211 |
7 | 2013053531260 |
oct | 321225323327 |
9 | 80450500827 |
10 | 28090672855 |
11 | 10a054a8313 |
12 | 553b614507 |
13 | 285894701b |
14 | 1506a33967 |
15 | ae61c74da |
hex | 68a55a6d7 |
28090672855 has 16 divisors (see below), whose sum is σ = 38877791040. Its totient is φ = 19085455872.
The previous prime is 28090672829. The next prime is 28090672859. The reversal of 28090672855 is 55827609082.
It is not a de Polignac number, because 28090672855 - 29 = 28090672343 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28090672859) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3677794 + ... + 3685423.
It is an arithmetic number, because the mean of its divisors is an integer number (2429861940).
Almost surely, 228090672855 is an apocalyptic number.
28090672855 is a deficient number, since it is larger than the sum of its proper divisors (10787118185).
28090672855 is a wasteful number, since it uses less digits than its factorization.
28090672855 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7363338.
The product of its (nonzero) digits is 2419200, while the sum is 52.
The spelling of 28090672855 in words is "twenty-eight billion, ninety million, six hundred seventy-two thousand, eight hundred fifty-five".
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