Base | Representation |
---|---|
bin | 11011111101011001… |
… | …100001011110001010 |
3 | 2212111020001102110020 |
4 | 123331121201132022 |
5 | 442440402130442 |
6 | 21442545001310 |
7 | 2111644252464 |
oct | 337531413612 |
9 | 85436042406 |
10 | 30021130122 |
11 | 11806166445 |
12 | 599a023236 |
13 | 2aa5882a29 |
14 | 164b189134 |
15 | baa8ee9ec |
hex | 6fd66178a |
30021130122 has 24 divisors (see below), whose sum is σ = 60257645088. Its totient is φ = 9971273760.
The previous prime is 30021130099. The next prime is 30021130147. The reversal of 30021130122 is 22103112003.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 442083 + ... + 505449.
It is an arithmetic number, because the mean of its divisors is an integer number (2510735212).
Almost surely, 230021130122 is an apocalyptic number.
30021130122 is an abundant number, since it is smaller than the sum of its proper divisors (30236514966).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30021130122 is an equidigital number, since it uses as much as digits as its factorization.
30021130122 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 63934 (or 63653 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 15.
Adding to 30021130122 its reverse (22103112003), we get a palindrome (52124242125).
The spelling of 30021130122 in words is "thirty billion, twenty-one million, one hundred thirty thousand, one hundred twenty-two".
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