30142910 has 32 divisors (see below), whose sum is σ = 62318592. Its totient is φ = 10283040.

The previous prime is 30142909. The next prime is 30142927. The reversal of 30142910 is 1924103.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 14645 + ... + 16575.

It is an arithmetic number, because the mean of its divisors is an integer number (1947456).

Almost surely, 2^30142910 is an apocalyptic number.

30142910 is an abundant number, since it is smaller than the sum of its proper divisors (32175682).

30142910 is a wasteful number, since it uses less digits than its factorization.

30142910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2168.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 30142910 is about 5490.2559138896. The cubic root of 30142910 is about 311.2158632045.

The spelling of 30142910 in words is "thirty million, one hundred forty-two thousand, nine hundred ten".