30313209 has 8 divisors (see below), whose sum is σ = 40810432. Its totient is φ = 20012400.

The previous prime is 30313201. The next prime is 30313219. The reversal of 30313209 is 90231303.

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

It is not a de Polignac number, because 30313209 - 2³ = 30313201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30313201) 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, 48742 + ... + 49359.

It is an arithmetic number, because the mean of its divisors is an integer number (5101304).

Almost surely, 2^30313209 is an apocalyptic number.

It is an amenable number.

30313209 is a deficient number, since it is larger than the sum of its proper divisors (10497223).

30313209 is a wasteful number, since it uses less digits than its factorization.

30313209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98207.

The product of its (nonzero) digits is 486, while the sum is 21.

The square root of 30313209 is about 5505.7432740730. The cubic root of 30313209 is about 311.8008570571.

The spelling of 30313209 in words is "thirty million, three hundred thirteen thousand, two hundred nine".