Base | Representation |
---|---|
bin | 11100010110010000… |
… | …001001110001110100 |
3 | 2220120021122220022212 |
4 | 130112100021301310 |
5 | 444314123313210 |
6 | 21552202112552 |
7 | 2125166421341 |
oct | 342620116164 |
9 | 86507586285 |
10 | 30438104180 |
11 | 119aa575200 |
12 | 5a957ab758 |
13 | 2b41088343 |
14 | 168a6cb7c8 |
15 | bd2317805 |
hex | 716409c74 |
30438104180 has 36 divisors (see below), whose sum is σ = 70259199780. Its totient is φ = 11068400640.
The previous prime is 30438104149. The next prime is 30438104197. The reversal of 30438104180 is 8140183403.
It can be written as a sum of positive squares in 2 ways, for example, as 12534593764 + 17903510416 = 111958^2 + 133804^2 .
It is a congruent number.
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, 6286445 + ... + 6291284.
Almost surely, 230438104180 is an apocalyptic number.
It is an amenable number.
30438104180 is an abundant number, since it is smaller than the sum of its proper divisors (39821095600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30438104180 is a wasteful number, since it uses less digits than its factorization.
30438104180 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12577760 (or 12577747 counting only the distinct ones).
The product of its (nonzero) digits is 9216, while the sum is 32.
Adding to 30438104180 its reverse (8140183403), we get a palindrome (38578287583).
The spelling of 30438104180 in words is "thirty billion, four hundred thirty-eight million, one hundred four thousand, one hundred eighty".
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