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30017 = 132309

30017 has 4 divisors (see below), whose sum is σ = 32340. Its totient is φ = 27696.

The previous prime is 30013. The next prime is 30029. The reversal of 30017 is 71003.

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 14641 + 15376 = 121^2 + 124^2 .

It is a cyclic number.

It is not a de Polignac number, because 30017 - 22 = 30013 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (30011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142 + ... + 1167.

It is an arithmetic number, because the mean of its divisors is an integer number (8085).

230017 is an apocalyptic number.

It is an amenable number.

30017 is a deficient number, since it is larger than the sum of its proper divisors (2323).

30017 is a wasteful number, since it uses less digits than its factorization.

30017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2322.

The product of its (nonzero) digits is 21, while the sum is 11.

The square root of 30017 is about 173.2541485795. The cubic root of 30017 is about 31.0781931682.

The spelling of 30017 in words is "thirty thousand, seventeen".

Divisors: 1 13 2309 30017