Base | Representation |
---|---|
bin | 11100001111101100… |
… | …001010100100011011 |
3 | 2220021121111101022021 |
4 | 130033230022210123 |
5 | 444102432210224 |
6 | 21533230235311 |
7 | 2122361543206 |
oct | 341754124433 |
9 | 86247441267 |
10 | 30328006939 |
11 | 1195340754a |
12 | 5a64955b37 |
13 | 2b2431a949 |
14 | 1679c2c93d |
15 | bc781b1e4 |
hex | 70fb0a91b |
30328006939 has 2 divisors, whose sum is σ = 30328006940. Its totient is φ = 30328006938.
The previous prime is 30328006937. The next prime is 30328006981. The reversal of 30328006939 is 93960082303.
It is a happy number.
It is a weak prime.
It is an emirp because it is prime and its reverse (93960082303) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30328006939 - 21 = 30328006937 is a prime.
Together with 30328006937, it forms a pair of twin primes.
It is a junction number, because it is equal to n+sod(n) for n = 30328006895 and 30328006904.
It is not a weakly prime, because it can be changed into another prime (30328006937) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15164003469 + 15164003470.
It is an arithmetic number, because the mean of its divisors is an integer number (15164003470).
Almost surely, 230328006939 is an apocalyptic number.
30328006939 is a deficient number, since it is larger than the sum of its proper divisors (1).
30328006939 is an equidigital number, since it uses as much as digits as its factorization.
30328006939 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 209952, while the sum is 43.
The spelling of 30328006939 in words is "thirty billion, three hundred twenty-eight million, six thousand, nine hundred thirty-nine".
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