Base | Representation |
---|---|
bin | 111001010001… |
… | …1101111101100 |
3 | 2002111201112220 |
4 | 1302203233230 |
5 | 30141441303 |
6 | 2551355340 |
7 | 513154302 |
oct | 162435754 |
9 | 62451486 |
10 | 30030828 |
11 | 15a51673 |
12 | a082b50 |
13 | 62b6029 |
14 | 3dba272 |
15 | 2983053 |
hex | 1ca3bec |
30030828 has 48 divisors (see below), whose sum is σ = 72522240. Its totient is φ = 9664704.
The previous prime is 30030821. The next prime is 30030829. The reversal of 30030828 is 82803003.
It is a junction number, because it is equal to n+sod(n) for n = 30030798 and 30030807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30030821) 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, 105975 + ... + 106257.
It is an arithmetic number, because the mean of its divisors is an integer number (1510880).
Almost surely, 230030828 is an apocalyptic number.
It is an amenable number.
30030828 is an abundant number, since it is smaller than the sum of its proper divisors (42491412).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30030828 is a wasteful number, since it uses less digits than its factorization.
30030828 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 566 (or 564 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 24.
The square root of 30030828 is about 5480.0390509558. The cubic root of 30030828 is about 310.8296472301.
The spelling of 30030828 in words is "thirty million, thirty thousand, eight hundred twenty-eight".
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