Base | Representation |
---|---|
bin | 11010100101101001… |
… | …000010000010100000 |
3 | 2201200121121100010212 |
4 | 122211221002002200 |
5 | 431431443110142 |
6 | 21040511513252 |
7 | 2030315542010 |
oct | 324551020240 |
9 | 81617540125 |
10 | 28548800672 |
11 | 11120065547 |
12 | 5648b28828 |
13 | 28cc82b382 |
14 | 154b809c40 |
15 | b2151dd82 |
hex | 6a5a420a0 |
28548800672 has 48 divisors (see below), whose sum is σ = 68013328320. Its totient is φ = 11515481088.
The previous prime is 28548800663. The next prime is 28548800713. The reversal of 28548800672 is 27600884582.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 28548800672.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3744722 + ... + 3752337.
It is an arithmetic number, because the mean of its divisors is an integer number (1416944340).
Almost surely, 228548800672 is an apocalyptic number.
It is an amenable number.
28548800672 is an abundant number, since it is smaller than the sum of its proper divisors (39464527648).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28548800672 is a wasteful number, since it uses less digits than its factorization.
28548800672 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7497093 (or 7497085 counting only the distinct ones).
The product of its (nonzero) digits is 1720320, while the sum is 50.
The spelling of 28548800672 in words is "twenty-eight billion, five hundred forty-eight million, eight hundred thousand, six hundred seventy-two".
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