185000030 has 16 divisors (see below), whose sum is σ = 333798624. Its totient is φ = 73822560.

The previous prime is 185000029. The next prime is 185000041. The reversal of 185000030 is 30000581.

It is a super-2 number, since 2×185000030² = 68450022200001800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 184999972 and 185000008.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17762 + ... + 26181.

It is an arithmetic number, because the mean of its divisors is an integer number (20862414).

Almost surely, 2^185000030 is an apocalyptic number.

185000030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

185000030 is a deficient number, since it is larger than the sum of its proper divisors (148798594).

185000030 is a wasteful number, since it uses less digits than its factorization.

185000030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44371.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 185000030 is about 13601.4716115573. The cubic root of 185000030 is about 569.8019523306.

The spelling of 185000030 in words is "one hundred eighty-five million, thirty", and thus it is an aban number.