30290093 has 4 divisors (see below), whose sum is σ = 30602460. Its totient is φ = 29977728.

The previous prime is 30290089. The next prime is 30290153. The reversal of 30290093 is 39009203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39009203 = 17 ⋅2294659.

It can be written as a sum of positive squares in 2 ways, for example, as 7038409 + 23251684 = 2653^2 + 4822^2 .

It is a cyclic number.

It is not a de Polignac number, because 30290093 - 2² = 30290089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30290023) 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 in 3 ways as a sum of consecutive naturals, for example, 156038 + ... + 156231.

It is an arithmetic number, because the mean of its divisors is an integer number (7650615).

Almost surely, 2^30290093 is an apocalyptic number.

It is an amenable number.

30290093 is a deficient number, since it is larger than the sum of its proper divisors (312367).

30290093 is an equidigital number, since it uses as much as digits as its factorization.

30290093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312366.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 30290093 is about 5503.6436112815. The cubic root of 30290093 is about 311.7215800496.

Adding to 30290093 its reverse (39009203), we get a palindrome (69299296).

The spelling of 30290093 in words is "thirty million, two hundred ninety thousand, ninety-three".