Base | Representation |
---|---|
bin | 11100001110001110… |
… | …011000011100000100 |
3 | 2220012220020100101211 |
4 | 130032032120130010 |
5 | 444030134002322 |
6 | 21530551301204 |
7 | 2121642560500 |
oct | 341616303404 |
9 | 86186210354 |
10 | 30303422212 |
11 | 11940545698 |
12 | 5a5867a804 |
13 | 2b1c1c077b |
14 | 167686d300 |
15 | bc55b1b77 |
hex | 70e398704 |
30303422212 has 18 divisors (see below), whose sum is σ = 61689109902. Its totient is φ = 12987180864.
The previous prime is 30303422203. The next prime is 30303422213. The reversal of 30303422212 is 21222430303.
It can be written as a sum of positive squares in only one way, i.e., 29899251396 + 404170816 = 172914^2 + 20104^2 .
It is not an unprimeable number, because it can be changed into a prime (30303422213) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77304453 + ... + 77304844.
Almost surely, 230303422212 is an apocalyptic number.
It is an amenable number.
30303422212 is an abundant number, since it is smaller than the sum of its proper divisors (31385687690).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30303422212 is a wasteful number, since it uses less digits than its factorization.
30303422212 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 154609315 (or 154609306 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 22.
Adding to 30303422212 its reverse (21222430303), we get a palindrome (51525852515).
The spelling of 30303422212 in words is "thirty billion, three hundred three million, four hundred twenty-two thousand, two hundred twelve".
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