30320065 has 4 divisors (see below), whose sum is σ = 36384084. Its totient is φ = 24256048.

The previous prime is 30320023. The next prime is 30320071. The reversal of 30320065 is 56002303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5089536 + 25230529 = 2256^2 + 5023^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30320065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3032002 + ... + 3032011.

It is an arithmetic number, because the mean of its divisors is an integer number (9096021).

Almost surely, 2^30320065 is an apocalyptic number.

It is an amenable number.

30320065 is a deficient number, since it is larger than the sum of its proper divisors (6064019).

30320065 is an equidigital number, since it uses as much as digits as its factorization.

30320065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6064018.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 30320065 is about 5506.3658614371. The cubic root of 30320065 is about 311.8243621626.

Adding to 30320065 its reverse (56002303), we get a palindrome (86322368).

The spelling of 30320065 in words is "thirty million, three hundred twenty thousand, sixty-five".