30293023 has 4 divisors (see below), whose sum is σ = 31337640. Its totient is φ = 29248408.

The previous prime is 30293017. The next prime is 30293033. The reversal of 30293023 is 32039203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30293023 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 30292985 and 30293003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30293033) 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, 522265 + ... + 522322.

It is an arithmetic number, because the mean of its divisors is an integer number (7834410).

Almost surely, 2^30293023 is an apocalyptic number.

30293023 is a deficient number, since it is larger than the sum of its proper divisors (1044617).

30293023 is a wasteful number, since it uses less digits than its factorization.

30293023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044616.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 30293023 is about 5503.9097921387. The cubic root of 30293023 is about 311.7316308032.

The spelling of 30293023 in words is "thirty million, two hundred ninety-three thousand, twenty-three".