30194293 has 4 divisors (see below), whose sum is σ = 30302028. Its totient is φ = 30086560.

The previous prime is 30194291. The next prime is 30194303. The reversal of 30194293 is 39249103.

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 10284849 + 19909444 = 3207^2 + 4462^2 .

It is a cyclic number.

It is not a de Polignac number, because 30194293 - 2¹ = 30194291 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30194291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53446 + ... + 54007.

It is an arithmetic number, because the mean of its divisors is an integer number (7575507).

Almost surely, 2^30194293 is an apocalyptic number.

It is an amenable number.

30194293 is a deficient number, since it is larger than the sum of its proper divisors (107735).

30194293 is a wasteful number, since it uses less digits than its factorization.

30194293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107734.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 30194293 is about 5494.9333935909. The cubic root of 30194293 is about 311.3926004742.

The spelling of 30194293 in words is "thirty million, one hundred ninety-four thousand, two hundred ninety-three".