Base | Representation |
---|---|
bin | 11100001110000101… |
… | …010011110100110101 |
3 | 2220012201202112010200 |
4 | 130032011103310311 |
5 | 444024031402041 |
6 | 21530424311113 |
7 | 2121613424133 |
oct | 341605236465 |
9 | 86181675120 |
10 | 30301044021 |
11 | 1193a170946 |
12 | 5a57912499 |
13 | 2b1b86a161 |
14 | 1676410753 |
15 | bc52921b6 |
hex | 70e153d35 |
30301044021 has 12 divisors (see below), whose sum is σ = 43773319200. Its totient is φ = 20198321640.
The previous prime is 30301043987. The next prime is 30301044043. The reversal of 30301044021 is 12044010303.
It is not a de Polignac number, because 30301044021 - 214 = 30301027637 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 30301043985 and 30301044003.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30301044071) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115225 + ... + 271806.
It is an arithmetic number, because the mean of its divisors is an integer number (3647776600).
Almost surely, 230301044021 is an apocalyptic number.
It is an amenable number.
30301044021 is a deficient number, since it is larger than the sum of its proper divisors (13472275179).
30301044021 is a wasteful number, since it uses less digits than its factorization.
30301044021 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 395736 (or 395733 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 30301044021 its reverse (12044010303), we get a palindrome (42345054324).
The spelling of 30301044021 in words is "thirty billion, three hundred one million, forty-four thousand, twenty-one".
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