Base | Representation |
---|---|
bin | 111001010001… |
… | …1101111101110 |
3 | 2002111201112222 |
4 | 1302203233232 |
5 | 30141441310 |
6 | 2551355342 |
7 | 513154304 |
oct | 162435756 |
9 | 62451488 |
10 | 30030830 |
11 | 15a51675 |
12 | a082b52 |
13 | 62b602b |
14 | 3dba274 |
15 | 2983055 |
hex | 1ca3bee |
30030830 has 32 divisors (see below), whose sum is σ = 57283200. Its totient is φ = 11303712.
The previous prime is 30030829. The next prime is 30030839. The reversal of 30030830 is 3803003.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 30030799 and 30030808.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030839) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33569 + ... + 34451.
It is an arithmetic number, because the mean of its divisors is an integer number (1790100).
Almost surely, 230030830 is an apocalyptic number.
30030830 is a deficient number, since it is larger than the sum of its proper divisors (27252370).
30030830 is a wasteful number, since it uses less digits than its factorization.
30030830 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1088.
The product of its (nonzero) digits is 216, while the sum is 17.
The square root of 30030830 is about 5480.0392334362. The cubic root of 30030830 is about 310.8296541303.
Adding to 30030830 its reverse (3803003), we get a palindrome (33833833).
The spelling of 30030830 in words is "thirty million, thirty thousand, eight hundred thirty".
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