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30130829 is a prime number
BaseRepresentation
bin111001011110…
…0001010001101
32002200210201122
41302330022031
530203141304
62553450325
7514051661
oct162741215
962623648
1030130829
111600a813
12a1109a5
13631c6c1
1440048a1
1529a29be
hex1cbc28d

30130829 has 2 divisors, whose sum is σ = 30130830. Its totient is φ = 30130828.

The previous prime is 30130781. The next prime is 30130843. The reversal of 30130829 is 92803103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25989604 + 4141225 = 5098^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 30130829 - 216 = 30065293 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30130798 and 30130807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30120829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15065414 + 15065415.

It is an arithmetic number, because the mean of its divisors is an integer number (15065415).

Almost surely, 230130829 is an apocalyptic number.

It is an amenable number.

30130829 is a deficient number, since it is larger than the sum of its proper divisors (1).

30130829 is an equidigital number, since it uses as much as digits as its factorization.

30130829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 30130829 is about 5489.1555816901. The cubic root of 30130829 is about 311.1742801672.

The spelling of 30130829 in words is "thirty million, one hundred thirty thousand, eight hundred twenty-nine".