Base | Representation |
---|---|
bin | 11100000010110001… |
… | …001111000011100110 |
3 | 2212201111121002022100 |
4 | 130002301033003212 |
5 | 443131433412410 |
6 | 21455524112530 |
7 | 2114120152032 |
oct | 340261170346 |
9 | 85644532270 |
10 | 30111232230 |
11 | 118520074a2 |
12 | 5a04235746 |
13 | 2abb43c2a1 |
14 | 16591211c2 |
15 | bb379b8c0 |
hex | 702c4f0e6 |
30111232230 has 96 divisors (see below), whose sum is σ = 82281588480. Its totient is φ = 7625217600.
The previous prime is 30111232223. The next prime is 30111232267. The reversal of 30111232230 is 3223211103.
30111232230 is a `hidden beast` number, since 301 + 1 + 12 + 322 + 30 = 666.
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235405 + ... + 340055.
It is an arithmetic number, because the mean of its divisors is an integer number (857099880).
Almost surely, 230111232230 is an apocalyptic number.
30111232230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 30111232230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41140794240).
30111232230 is an abundant number, since it is smaller than the sum of its proper divisors (52170356250).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
30111232230 is a wasteful number, since it uses less digits than its factorization.
30111232230 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 104826 (or 104823 counting only the distinct ones).
The product of its (nonzero) digits is 216, while the sum is 18.
Adding to 30111232230 its reverse (3223211103), we get a palindrome (33334443333).
The spelling of 30111232230 in words is "thirty billion, one hundred eleven million, two hundred thirty-two thousand, two hundred thirty".
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