Base | Representation |
---|---|
bin | 11100001001110110… |
… | …010101110101101010 |
3 | 2220000210002200111000 |
4 | 130021312111311222 |
5 | 443402340324432 |
6 | 21515410015430 |
7 | 2120061566364 |
oct | 341166256552 |
9 | 86023080430 |
10 | 30230011242 |
11 | 11903064972 |
12 | 5a37b77576 |
13 | 2b09c29522 |
14 | 166abddd34 |
15 | bbde1057c |
hex | 709d95d6a |
30230011242 has 32 divisors (see below), whose sum is σ = 67842941760. Its totient is φ = 9976899600.
The previous prime is 30230011193. The next prime is 30230011267. The reversal of 30230011242 is 24211003203.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2765908 + ... + 2776815.
It is an arithmetic number, because the mean of its divisors is an integer number (2120091930).
Almost surely, 230230011242 is an apocalyptic number.
30230011242 is an abundant number, since it is smaller than the sum of its proper divisors (37612930518).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30230011242 is a wasteful number, since it uses less digits than its factorization.
30230011242 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5542835 (or 5542829 counting only the distinct ones).
The product of its (nonzero) digits is 288, while the sum is 18.
Adding to 30230011242 its reverse (24211003203), we get a palindrome (54441014445).
The spelling of 30230011242 in words is "thirty billion, two hundred thirty million, eleven thousand, two hundred forty-two".
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