30000213 has 10 divisors (see below), whose sum is σ = 44815254. Its totient is φ = 20000088.

The previous prime is 30000199. The next prime is 30000247. The reversal of 30000213 is 31200003.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28965924 + 1034289 = 5382^2 + 1017^2 .

It is not a de Polignac number, because 30000213 - 2⁶ = 30000149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 30000195 and 30000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000293) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 185106 + ... + 185267.

Almost surely, 2^30000213 is an apocalyptic number.

It is an amenable number.

30000213 is a deficient number, since it is larger than the sum of its proper divisors (14815041).

30000213 is an equidigital number, since it uses as much as digits as its factorization.

30000213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370385 (or 370376 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 30000213 is about 5477.2450191679. The cubic root of 30000213 is about 310.7239859720.

Adding to 30000213 its reverse (31200003), we get a palindrome (61200216).

The spelling of 30000213 in words is "thirty million, two hundred thirteen", and thus it is an aban number.