Base | Representation |
---|---|
bin | 11010000110101111… |
… | …010101001101110000 |
3 | 2200100111001202000122 |
4 | 122012233111031300 |
5 | 424401232432014 |
6 | 20513231505412 |
7 | 2011422054320 |
oct | 320657251560 |
9 | 80314052018 |
10 | 28030358384 |
11 | 10984452146 |
12 | 5523388268 |
13 | 28492b9ba2 |
14 | 14dca13280 |
15 | ae0c6158e |
hex | 686bd5370 |
28030358384 has 20 divisors (see below), whose sum is σ = 62067222384. Its totient is φ = 12013010688.
The previous prime is 28030358347. The next prime is 28030358417. The reversal of 28030358384 is 48385303082.
It is a super-2 number, since 2×280303583842 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.
It is a congruent number.
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, 125135417 + ... + 125135640.
Almost surely, 228030358384 is an apocalyptic number.
It is an amenable number.
28030358384 is an abundant number, since it is smaller than the sum of its proper divisors (34036864000).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28030358384 is a wasteful number, since it uses less digits than its factorization.
28030358384 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 250271072 (or 250271066 counting only the distinct ones).
The product of its (nonzero) digits is 552960, while the sum is 44.
The spelling of 28030358384 in words is "twenty-eight billion, thirty million, three hundred fifty-eight thousand, three hundred eighty-four".
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