Base | Representation |
---|---|
bin | 11010011111000110… |
… | …100100011000000110 |
3 | 2201101222012010012110 |
4 | 122133012210120012 |
5 | 431220402243412 |
6 | 21021552401450 |
7 | 2024514246453 |
oct | 323706443006 |
9 | 81358163173 |
10 | 28439102982 |
11 | 1107414aaa4 |
12 | 5618246286 |
13 | 28b2ba07b4 |
14 | 153b01282a |
15 | b16aa0d3c |
hex | 69f1a4606 |
28439102982 has 8 divisors (see below), whose sum is σ = 56878205976. Its totient is φ = 9479700992.
The previous prime is 28439102981. The next prime is 28439102999. The reversal of 28439102982 is 28920193482.
It is a sphenic number, since it is the product of 3 distinct primes.
28439102982 is an admirable number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28439102981) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2369925243 + ... + 2369925254.
It is an arithmetic number, because the mean of its divisors is an integer number (7109775747).
Almost surely, 228439102982 is an apocalyptic number.
28439102982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28439102982 is a wasteful number, since it uses less digits than its factorization.
28439102982 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4739850502.
The product of its (nonzero) digits is 497664, while the sum is 48.
The spelling of 28439102982 in words is "twenty-eight billion, four hundred thirty-nine million, one hundred two thousand, nine hundred eighty-two".
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