30102947 has 8 divisors (see below), whose sum is σ = 34444800. Its totient is φ = 25771464.

The previous prime is 30102923. The next prime is 30102959. The reversal of 30102947 is 74920103.

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

It is a cyclic number.

It is not a de Polignac number, because 30102947 - 2²² = 25908643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30102997) 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, 5204 + ... + 9342.

It is an arithmetic number, because the mean of its divisors is an integer number (4305600).

Almost surely, 2^30102947 is an apocalyptic number.

30102947 is a deficient number, since it is larger than the sum of its proper divisors (4341853).

30102947 is a wasteful number, since it uses less digits than its factorization.

30102947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5185.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 30102947 is about 5486.6152589734. The cubic root of 30102947 is about 311.0782673331.

The spelling of 30102947 in words is "thirty million, one hundred two thousand, nine hundred forty-seven".