Base | Representation |
---|---|
bin | 111001111000… |
… | …0110001011011 |
3 | 2010002202100012 |
4 | 1303300301123 |
5 | 30232040311 |
6 | 3002232135 |
7 | 515640161 |
oct | 163606133 |
9 | 63082305 |
10 | 30346331 |
11 | 16147714 |
12 | a1b564b |
13 | 6396812 |
14 | 405d231 |
15 | 29e678b |
hex | 1cf0c5b |
30346331 has 2 divisors, whose sum is σ = 30346332. Its totient is φ = 30346330.
The previous prime is 30346307. The next prime is 30346333. The reversal of 30346331 is 13364303.
It is a strong prime.
It is an emirp because it is prime and its reverse (13364303) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30346331 is a prime.
It is a super-2 number, since 2×303463312 = 1841799610323122, which contains 22 as substring.
Together with 30346333, it forms a pair of twin primes.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 30346297 and 30346306.
It is not a weakly prime, because it can be changed into another prime (30346333) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15173165 + 15173166.
It is an arithmetic number, because the mean of its divisors is an integer number (15173166).
Almost surely, 230346331 is an apocalyptic number.
30346331 is a deficient number, since it is larger than the sum of its proper divisors (1).
30346331 is an equidigital number, since it uses as much as digits as its factorization.
30346331 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1944, while the sum is 23.
The square root of 30346331 is about 5508.7504027683. The cubic root of 30346331 is about 311.9143797220.
The spelling of 30346331 in words is "thirty million, three hundred forty-six thousand, three hundred thirty-one".
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