Base | Representation |
---|---|
bin | 11010001010011101… |
… | …110000100000011011 |
3 | 2200111211200011201201 |
4 | 122022131300200123 |
5 | 430013233013233 |
6 | 20523343255031 |
7 | 2013111242134 |
oct | 321235604033 |
9 | 80454604651 |
10 | 28092860443 |
11 | 10a0676193a |
12 | 55402aa477 |
13 | 285923195b |
14 | 1507042c8b |
15 | ae64aa77d |
hex | 68a77081b |
28092860443 has 4 divisors (see below), whose sum is σ = 28569010680. Its totient is φ = 27616710208.
The previous prime is 28092860441. The next prime is 28092860459. The reversal of 28092860443 is 34406829082.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34406829082 = 2 ⋅17203414541.
It is a cyclic number.
It is not a de Polignac number, because 28092860443 - 21 = 28092860441 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 28092860393 and 28092860402.
It is not an unprimeable number, because it can be changed into a prime (28092860441) 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, 238075030 + ... + 238075147.
It is an arithmetic number, because the mean of its divisors is an integer number (7142252670).
Almost surely, 228092860443 is an apocalyptic number.
28092860443 is a deficient number, since it is larger than the sum of its proper divisors (476150237).
28092860443 is an equidigital number, since it uses as much as digits as its factorization.
28092860443 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 476150236.
The product of its (nonzero) digits is 663552, while the sum is 46.
The spelling of 28092860443 in words is "twenty-eight billion, ninety-two million, eight hundred sixty thousand, four hundred forty-three".
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