Base | Representation |
---|---|
bin | 110110010010… |
… | …1101101101100 |
3 | 1222120020001100 |
4 | 1230211231230 |
5 | 24241403103 |
6 | 2454043100 |
7 | 463646223 |
oct | 154455554 |
9 | 58506040 |
10 | 28466028 |
11 | 15082a48 |
12 | 9649490 |
13 | 5b88a06 |
14 | 3acdcba |
15 | 27745a3 |
hex | 1b25b6c |
28466028 has 36 divisors (see below), whose sum is σ = 75744760. Its totient is φ = 8989056.
The previous prime is 28466021. The next prime is 28466033. The reversal of 28466028 is 82066482.
28466028 is a `hidden beast` number, since 2 + 8 + 46 + 602 + 8 = 666.
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 28465983 and 28466001.
It is not an unprimeable number, because it can be changed into a prime (28466021) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20125 + ... + 21492.
Almost surely, 228466028 is an apocalyptic number.
It is an amenable number.
28466028 is an abundant number, since it is smaller than the sum of its proper divisors (47278732).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28466028 is a wasteful number, since it uses less digits than its factorization.
28466028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 41646 (or 41641 counting only the distinct ones).
The product of its (nonzero) digits is 36864, while the sum is 36.
The square root of 28466028 is about 5335.3564079638. The cubic root of 28466028 is about 305.3343212128.
The spelling of 28466028 in words is "twenty-eight million, four hundred sixty-six thousand, twenty-eight".
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