30102886 has 16 divisors (see below), whose sum is σ = 52157520. Its totient is φ = 12878080.

The previous prime is 30102847. The next prime is 30102911. The reversal of 30102886 is 68820103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39871 + ... + 40618.

It is an arithmetic number, because the mean of its divisors is an integer number (3259845).

Almost surely, 2^30102886 is an apocalyptic number.

30102886 is a deficient number, since it is larger than the sum of its proper divisors (22054634).

30102886 is a wasteful number, since it uses less digits than its factorization.

30102886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80519.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 30102886 is about 5486.6096999878. The cubic root of 30102886 is about 311.0780572121.

Adding to 30102886 its reverse (68820103), we get a palindrome (98922989).

The spelling of 30102886 in words is "thirty million, one hundred two thousand, eight hundred eighty-six".