30312984 has 32 divisors (see below), whose sum is σ = 81612720. Its totient is φ = 9326976.

The previous prime is 30312983. The next prime is 30313001. The reversal of 30312984 is 48921303.

It is a super-3 number, since 3×30312984³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48267 + ... + 48890.

Almost surely, 2^30312984 is an apocalyptic number.

It is an amenable number.

30312984 is an abundant number, since it is smaller than the sum of its proper divisors (51299736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30312984 is a wasteful number, since it uses less digits than its factorization.

30312984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97179 (or 97175 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 30312984 is about 5505.7228408266. The cubic root of 30312984 is about 311.8000856072.

The spelling of 30312984 in words is "thirty million, three hundred twelve thousand, nine hundred eighty-four".