Base | Representation |
---|---|
bin | 111001010010… |
… | …0010011101010 |
3 | 2002111211201011 |
4 | 1302210103222 |
5 | 30142030010 |
6 | 2551414134 |
7 | 513164101 |
oct | 162442352 |
9 | 62454634 |
10 | 30033130 |
11 | 15a53376 |
12 | a08434a |
13 | 62b70aa |
14 | 3dbb038 |
15 | 2983a8a |
hex | 1ca44ea |
30033130 has 16 divisors (see below), whose sum is σ = 54122760. Its totient is φ = 11999232.
The previous prime is 30033119. The next prime is 30033131. The reversal of 30033130 is 3133003.
It can be written as a sum of positive squares in 4 ways, for example, as 24930049 + 5103081 = 4993^2 + 2259^2 .
It is a self number, because there is not a number n which added to its sum of digits gives 30033130.
It is not an unprimeable number, because it can be changed into a prime (30033131) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13882 + ... + 15898.
Almost surely, 230033130 is an apocalyptic number.
30033130 is a deficient number, since it is larger than the sum of its proper divisors (24089630).
30033130 is a wasteful number, since it uses less digits than its factorization.
30033130 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3513.
The product of its (nonzero) digits is 81, while the sum is 13.
The square root of 30033130 is about 5480.2490819305. The cubic root of 30033130 is about 310.8375891974.
Adding to 30033130 its reverse (3133003), we get a palindrome (33166133).
The spelling of 30033130 in words is "thirty million, thirty-three thousand, one hundred thirty".
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