30160993 has 8 divisors (see below), whose sum is σ = 30486888. Its totient is φ = 29837184.

The previous prime is 30160969. The next prime is 30161011. The reversal of 30160993 is 39906103.

It can be written as a sum of positive squares in 4 ways, for example, as 42849 + 30118144 = 207^2 + 5488^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30160993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30160393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53871 + ... + 54427.

It is an arithmetic number, because the mean of its divisors is an integer number (3810861).

Almost surely, 2^30160993 is an apocalyptic number.

It is an amenable number.

30160993 is a deficient number, since it is larger than the sum of its proper divisors (325895).

30160993 is a wasteful number, since it uses less digits than its factorization.

30160993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 30160993 is about 5491.9024936719. The cubic root of 30160993 is about 311.2780844859.

The spelling of 30160993 in words is "thirty million, one hundred sixty thousand, nine hundred ninety-three".