Base | Representation |
---|---|
bin | 111001101010… |
… | …0100100101001 |
3 | 2002212212220012 |
4 | 1303110210221 |
5 | 30214341300 |
6 | 2555541305 |
7 | 514646342 |
oct | 163244451 |
9 | 62785805 |
10 | 30230825 |
11 | 16078959 |
12 | a15a835 |
13 | 6356081 |
14 | 402d0c9 |
15 | 29c2435 |
hex | 1cd4929 |
30230825 has 6 divisors (see below), whose sum is σ = 37486254. Its totient is φ = 24184640.
The previous prime is 30230819. The next prime is 30230839. The reversal of 30230825 is 52803203.
It can be written as a sum of positive squares in 3 ways, for example, as 495616 + 29735209 = 704^2 + 5453^2 .
It is not a de Polignac number, because 30230825 - 214 = 30214441 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 30230825.
It is an unprimeable number.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 604592 + ... + 604641.
It is an arithmetic number, because the mean of its divisors is an integer number (6247709).
Almost surely, 230230825 is an apocalyptic number.
It is an amenable number.
30230825 is a deficient number, since it is larger than the sum of its proper divisors (7255429).
30230825 is a wasteful number, since it uses less digits than its factorization.
30230825 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1209243 (or 1209238 counting only the distinct ones).
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 30230825 is about 5498.2565418503. The cubic root of 30230825 is about 311.5181342378.
The spelling of 30230825 in words is "thirty million, two hundred thirty thousand, eight hundred twenty-five".
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