30012900 has 36 divisors (see below), whose sum is σ = 86838192. Its totient is φ = 8003360.

The previous prime is 30012889. The next prime is 30012919. The reversal of 30012900 is 921003.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30012900.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49722 + ... + 50321.

It is an arithmetic number, because the mean of its divisors is an integer number (2412172).

Almost surely, 2^30012900 is an apocalyptic number.

30012900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30012900 is an abundant number, since it is smaller than the sum of its proper divisors (56825292).

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

30012900 is a wasteful number, since it uses less digits than its factorization.

30012900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100060 (or 100053 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 30012900 is about 5478.4030519851. The cubic root of 30012900 is about 310.7677812125.

Adding to 30012900 its reverse (921003), we get a palindrome (30933903).

The spelling of 30012900 in words is "thirty million, twelve thousand, nine hundred".