30256198 has 8 divisors (see below), whose sum is σ = 51867792. Its totient is φ = 12966936.

The previous prime is 30256181. The next prime is 30256199. The reversal of 30256198 is 89165203.

30256198 = T₁₆₈₇ + T₁₆₈₈ + ... + T₁₇₀₇.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30256199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080565 + ... + 1080592.

It is an arithmetic number, because the mean of its divisors is an integer number (6483474).

Almost surely, 2^30256198 is an apocalyptic number.

30256198 is a deficient number, since it is larger than the sum of its proper divisors (21611594).

30256198 is a wasteful number, since it uses less digits than its factorization.

30256198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161166.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 30256198 is about 5500.5634256865. The cubic root of 30256198 is about 311.6052631789.

The spelling of 30256198 in words is "thirty million, two hundred fifty-six thousand, one hundred ninety-eight".