Base | Representation |
---|---|
bin | 111010000111… |
… | …0001100000010 |
3 | 2010022212121200 |
4 | 1310032030002 |
5 | 30244414233 |
6 | 3005002030 |
7 | 516651354 |
oct | 164161402 |
9 | 63285550 |
10 | 30466818 |
11 | 1621a198 |
12 | a253316 |
13 | 6409605 |
14 | 40910d4 |
15 | 2a1c313 |
hex | 1d0e302 |
30466818 has 18 divisors (see below), whose sum is σ = 66062217. Its totient is φ = 10147800.
The previous prime is 30466811. The next prime is 30466853. The reversal of 30466818 is 81866403.
It is a happy number.
It can be written as a sum of positive squares in 2 ways, for example, as 16426809 + 14040009 = 4053^2 + 3747^2 .
It is a tau number, because it is divible by the number of its divisors (18).
It is an ABA number since it can be written as A⋅BA, here for A=2, B=3903.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30466811) by changing a digit.
It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 22768 + ... + 24068.
Almost surely, 230466818 is an apocalyptic number.
30466818 is an abundant number, since it is smaller than the sum of its proper divisors (35595399).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30466818 is an equidigital number, since it uses as much as digits as its factorization.
30466818 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2610 (or 1306 counting only the distinct ones).
The product of its (nonzero) digits is 27648, while the sum is 36.
The square root of 30466818 is about 5519.6755339422. The cubic root of 30466818 is about 312.3266426222.
The spelling of 30466818 in words is "thirty million, four hundred sixty-six thousand, eight hundred eighteen".
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