Base | Representation |
---|---|
bin | 11010000110101101… |
… | …111110111100100110 |
3 | 2200100110101210022110 |
4 | 122012231332330212 |
5 | 424401140130110 |
6 | 20513220141450 |
7 | 2011416053166 |
oct | 320655767446 |
9 | 80313353273 |
10 | 28030005030 |
11 | 10984230715 |
12 | 5523237886 |
13 | 28491c50c1 |
14 | 14dc9605a6 |
15 | ae0be1a20 |
hex | 686b7ef26 |
28030005030 has 16 divisors (see below), whose sum is σ = 67272012144. Its totient is φ = 7474668000.
The previous prime is 28030005001. The next prime is 28030005043. The reversal of 28030005030 is 3050003082.
It is a junction number, because it is equal to n+sod(n) for n = 28030004988 and 28030005006.
It is a congruent number.
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, 467166721 + ... + 467166780.
It is an arithmetic number, because the mean of its divisors is an integer number (4204500759).
Almost surely, 228030005030 is an apocalyptic number.
28030005030 is an abundant number, since it is smaller than the sum of its proper divisors (39242007114).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28030005030 is a wasteful number, since it uses less digits than its factorization.
28030005030 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 934333511.
The product of its (nonzero) digits is 720, while the sum is 21.
The spelling of 28030005030 in words is "twenty-eight billion, thirty million, five thousand, thirty".
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