Base | Representation |
---|---|
bin | 11100010011100011… |
… | …010010001011100011 |
3 | 2220110010101120210002 |
4 | 130103203102023203 |
5 | 444221023201213 |
6 | 21543502530215 |
7 | 2124106301306 |
oct | 342343221343 |
9 | 86403346702 |
10 | 30392787683 |
11 | 11986a33255 |
12 | 5a8259696b |
13 | 2b3487c94b |
14 | 1684692b3d |
15 | bcd365658 |
hex | 7138d22e3 |
30392787683 has 2 divisors, whose sum is σ = 30392787684. Its totient is φ = 30392787682.
The previous prime is 30392787647. The next prime is 30392787707. The reversal of 30392787683 is 38678729303.
It is a strong prime.
It is an emirp because it is prime and its reverse (38678729303) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30392787683 - 28 = 30392787427 is a prime.
It is not a weakly prime, because it can be changed into another prime (30392787083) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15196393841 + 15196393842.
It is an arithmetic number, because the mean of its divisors is an integer number (15196393842).
Almost surely, 230392787683 is an apocalyptic number.
30392787683 is a deficient number, since it is larger than the sum of its proper divisors (1).
30392787683 is an equidigital number, since it uses as much as digits as its factorization.
30392787683 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 9144576, while the sum is 56.
The spelling of 30392787683 in words is "thirty billion, three hundred ninety-two million, seven hundred eighty-seven thousand, six hundred eighty-three".
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