30010005 has 12 divisors (see below), whose sum is σ = 52017420. Its totient is φ = 16005312.

The previous prime is 30009979. The next prime is 30010021. The reversal of 30010005 is 50001003.

It can be written as a sum of positive squares in 2 ways, for example, as 11009124 + 19000881 = 3318^2 + 4359^2 .

It is not a de Polignac number, because 30010005 - 2⁷ = 30009877 is a prime.

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

It is a congruent number.

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, 333400 + ... + 333489.

It is an arithmetic number, because the mean of its divisors is an integer number (4334785).

Almost surely, 2^30010005 is an apocalyptic number.

It is an amenable number.

30010005 is a deficient number, since it is larger than the sum of its proper divisors (22007415).

30010005 is a wasteful number, since it uses less digits than its factorization.

30010005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666900 (or 666897 counting only the distinct ones).

The product of its (nonzero) digits is 15, while the sum is 9.

The square root of 30010005 is about 5478.1388262803. The cubic root of 30010005 is about 310.7577888242.

Adding to 30010005 its reverse (50001003), we get a palindrome (80011008).

The spelling of 30010005 in words is "thirty million, ten thousand, five".