Base | Representation |
---|---|
bin | 111010011110… |
… | …1100001101001 |
3 | 2010200201120222 |
4 | 1310331201221 |
5 | 30322120323 |
6 | 3013055425 |
7 | 521416556 |
oct | 164754151 |
9 | 63621528 |
10 | 30660713 |
11 | 16341936 |
12 | a327575 |
13 | 6476945 |
14 | 4101a2d |
15 | 2a599c8 |
hex | 1d3d869 |
30660713 has 2 divisors, whose sum is σ = 30660714. Its totient is φ = 30660712.
The previous prime is 30660689. The next prime is 30660727. The reversal of 30660713 is 31706603.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 18079504 + 12581209 = 4252^2 + 3547^2 .
It is an emirp because it is prime and its reverse (31706603) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 30660713 - 212 = 30656617 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (30660793) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15330356 + 15330357.
It is an arithmetic number, because the mean of its divisors is an integer number (15330357).
Almost surely, 230660713 is an apocalyptic number.
It is an amenable number.
30660713 is a deficient number, since it is larger than the sum of its proper divisors (1).
30660713 is an equidigital number, since it uses as much as digits as its factorization.
30660713 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2268, while the sum is 26.
The square root of 30660713 is about 5537.2116629221. The cubic root of 30660713 is about 312.9878051913.
The spelling of 30660713 in words is "thirty million, six hundred sixty thousand, seven hundred thirteen".
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