Base | Representation |
---|---|
bin | 11011111110101101… |
… | …011111101011101010 |
3 | 2212112202110210021221 |
4 | 123332231133223222 |
5 | 443012021033030 |
6 | 21445052452254 |
7 | 2112332333605 |
oct | 337655375352 |
9 | 85482423257 |
10 | 30043142890 |
11 | 11817630a12 |
12 | 59a547a08a |
13 | 2aaa2bc337 |
14 | 165007933c |
15 | bac7ebe7a |
hex | 6feb5faea |
30043142890 has 16 divisors (see below), whose sum is σ = 54080356320. Its totient is φ = 12016657360.
The previous prime is 30043142881. The next prime is 30043142911. The reversal of 30043142890 is 9824134003.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175125 + ... + 301255.
It is an arithmetic number, because the mean of its divisors is an integer number (3380022270).
Almost surely, 230043142890 is an apocalyptic number.
30043142890 is a deficient number, since it is larger than the sum of its proper divisors (24037213430).
30043142890 is a wasteful number, since it uses less digits than its factorization.
30043142890 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 149957.
The product of its (nonzero) digits is 20736, while the sum is 34.
Adding to 30043142890 its reverse (9824134003), we get a palindrome (39867276893).
The spelling of 30043142890 in words is "thirty billion, forty-three million, one hundred forty-two thousand, eight hundred ninety".
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