Base | Representation |
---|---|
bin | 11010001000011000… |
… | …111001011100001010 |
3 | 2200102102010200221000 |
4 | 122020120321130022 |
5 | 424430324010012 |
6 | 20520100555430 |
7 | 2012206223136 |
oct | 321030713412 |
9 | 80372120830 |
10 | 28058031882 |
11 | 10999033701 |
12 | 55306b2b76 |
13 | 2851c58c3a |
14 | 15025783c6 |
15 | ae33caddc |
hex | 68863970a |
28058031882 has 32 divisors (see below), whose sum is σ = 64036353600. Its totient is φ = 9099901584.
The previous prime is 28058031863. The next prime is 28058031907. The reversal of 28058031882 is 28813085082.
28058031882 is a `hidden beast` number, since 280 + 58 + 0 + 318 + 8 + 2 = 666.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7019532 + ... + 7023527.
It is an arithmetic number, because the mean of its divisors is an integer number (2001136050).
Almost surely, 228058031882 is an apocalyptic number.
28058031882 is an abundant number, since it is smaller than the sum of its proper divisors (35978321718).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28058031882 is a wasteful number, since it uses less digits than its factorization.
28058031882 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 14043107 (or 14043101 counting only the distinct ones).
The product of its (nonzero) digits is 245760, while the sum is 45.
The spelling of 28058031882 in words is "twenty-eight billion, fifty-eight million, thirty-one thousand, eight hundred eighty-two".
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