30930093 has 10 divisors (see below), whose sum is σ = 46204334. Its totient is φ = 20620008.

The previous prime is 30930091. The next prime is 30930103. The reversal of 30930093 is 39003903.

It can be written as a sum of positive squares in only one way, i.e., 30437289 + 492804 = 5517^2 + 702^2 .

It is not a de Polignac number, because 30930093 - 2¹ = 30930091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30930091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 190846 + ... + 191007.

Almost surely, 2^30930093 is an apocalyptic number.

It is an amenable number.

30930093 is a deficient number, since it is larger than the sum of its proper divisors (15274241).

30930093 is an equidigital number, since it uses as much as digits as its factorization.

30930093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381865 (or 381856 counting only the distinct ones).

The product of its (nonzero) digits is 2187, while the sum is 27.

The square root of 30930093 is about 5561.4829856793. The cubic root of 30930093 is about 313.9017536494.

Adding to 30930093 its reverse (39003903), we get a palindrome (69933996).

The spelling of 30930093 in words is "thirty million, nine hundred thirty thousand, ninety-three".