30193023 has 16 divisors (see below), whose sum is σ = 46100736. Its totient is φ = 17218560.

The previous prime is 30193021. The next prime is 30193027. The reversal of 30193023 is 32039103.

It is not a de Polignac number, because 30193023 - 2¹ = 30193021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30193021) 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 15 ways as a sum of consecutive naturals, for example, 12340 + ... + 14582.

It is an arithmetic number, because the mean of its divisors is an integer number (2881296).

Almost surely, 2^30193023 is an apocalyptic number.

30193023 is a deficient number, since it is larger than the sum of its proper divisors (15907713).

30193023 is a wasteful number, since it uses less digits than its factorization.

30193023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2894.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 30193023 is about 5494.8178313753. The cubic root of 30193023 is about 311.3882345924.

The spelling of 30193023 in words is "thirty million, one hundred ninety-three thousand, twenty-three".