30140983 has 8 divisors (see below), whose sum is σ = 31961952. Its totient is φ = 28325376.

The previous prime is 30140969. The next prime is 30140987. The reversal of 30140983 is 38904103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30140983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30140987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21366 + ... + 22732.

It is an arithmetic number, because the mean of its divisors is an integer number (3995244).

Almost surely, 2^30140983 is an apocalyptic number.

30140983 is a deficient number, since it is larger than the sum of its proper divisors (1820969).

30140983 is a wasteful number, since it uses less digits than its factorization.

30140983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2681.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 30140983 is about 5490.0804183545. The cubic root of 30140983 is about 311.2092311779.

The spelling of 30140983 in words is "thirty million, one hundred forty thousand, nine hundred eighty-three".