Base | Representation |
---|---|
bin | 111010011111… |
… | …0001000000000 |
3 | 2010200211221220 |
4 | 1310332020000 |
5 | 30322210133 |
6 | 3013115040 |
7 | 521426664 |
oct | 164761000 |
9 | 63624856 |
10 | 30663168 |
11 | 16343768 |
12 | a328a80 |
13 | 6477ab3 |
14 | 41028a4 |
15 | 2a5a5b3 |
hex | 1d3e200 |
30663168 has 40 divisors (see below), whose sum is σ = 81692688. Its totient is φ = 10220544.
The previous prime is 30663161. The next prime is 30663173. The reversal of 30663168 is 86136603.
It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.
It is not an unprimeable number, because it can be changed into a prime (30663161) 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, 8446 + ... + 11517.
Almost surely, 230663168 is an apocalyptic number.
It is an amenable number.
30663168 is an abundant number, since it is smaller than the sum of its proper divisors (51029520).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30663168 is an equidigital number, since it uses as much as digits as its factorization.
30663168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19984 (or 19968 counting only the distinct ones).
The product of its (nonzero) digits is 15552, while the sum is 33.
The square root of 30663168 is about 5537.4333404566. The cubic root of 30663168 is about 312.9961586017.
The spelling of 30663168 in words is "thirty million, six hundred sixty-three thousand, one hundred sixty-eight".
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