Base | Representation |
---|---|
bin | 11010101110110011… |
… | …010101111111101000 |
3 | 2202002022211000022211 |
4 | 122232303111333220 |
5 | 432240314430132 |
6 | 21104042054504 |
7 | 2034163133332 |
oct | 325663257750 |
9 | 82068730284 |
10 | 28702498792 |
11 | 111998a3190 |
12 | 56904aa434 |
13 | 29256235c6 |
14 | 1563db8452 |
15 | b2ec7e147 |
hex | 6aecd5fe8 |
28702498792 has 16 divisors (see below), whose sum is σ = 58709656800. Its totient is φ = 13046590320.
The previous prime is 28702498739. The next prime is 28702498841. The reversal of 28702498792 is 29789420782.
It is a super-2 number, since 2×287024987922 (a number of 22 digits) contains 22 as substring.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163082292 + ... + 163082467.
It is an arithmetic number, because the mean of its divisors is an integer number (3669353550).
Almost surely, 228702498792 is an apocalyptic number.
28702498792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
28702498792 is an abundant number, since it is smaller than the sum of its proper divisors (30007158008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28702498792 is a wasteful number, since it uses less digits than its factorization.
28702498792 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 326164776 (or 326164772 counting only the distinct ones).
The product of its (nonzero) digits is 8128512, while the sum is 58.
The spelling of 28702498792 in words is "twenty-eight billion, seven hundred two million, four hundred ninety-eight thousand, seven hundred ninety-two".
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