Base | Representation |
---|---|
bin | 11100010101011011… |
… | …010011111011011000 |
3 | 2220112022121010212121 |
4 | 130111123103323120 |
5 | 444302102031440 |
6 | 21550545151024 |
7 | 2124640606333 |
oct | 342533237330 |
9 | 86468533777 |
10 | 30424252120 |
11 | 119a2773a19 |
12 | 5a9102b474 |
13 | 2b3b248362 |
14 | 168892361a |
15 | bd0ecd34a |
hex | 7156d3ed8 |
30424252120 has 32 divisors (see below), whose sum is σ = 68651874000. Its totient is φ = 12134624128.
The previous prime is 30424252073. The next prime is 30424252127. The reversal of 30424252120 is 2125242403.
It is a super-2 number, since 2×304242521202 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30424252127) 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, 1082095 + ... + 1109854.
Almost surely, 230424252120 is an apocalyptic number.
It is an amenable number.
30424252120 is an abundant number, since it is smaller than the sum of its proper divisors (38227621880).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30424252120 is a wasteful number, since it uses less digits than its factorization.
30424252120 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2192307 (or 2192303 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 25.
Adding to 30424252120 its reverse (2125242403), we get a palindrome (32549494523).
The spelling of 30424252120 in words is "thirty billion, four hundred twenty-four million, two hundred fifty-two thousand, one hundred twenty".
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