308930 has 8 divisors (see below), whose sum is σ = 556092. Its totient is φ = 123568.

The previous prime is 308929. The next prime is 308933. The reversal of 308930 is 39803.

It can be written as a sum of positive squares in 2 ways, for example, as 303601 + 5329 = 551^2 + 73^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 308896 and 308905.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308930.

It is not an unprimeable number, because it can be changed into a prime (308933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15437 + ... + 15456.

2³⁰⁸⁹³⁰ is an apocalyptic number.

308930 is a deficient number, since it is larger than the sum of its proper divisors (247162).

308930 is a wasteful number, since it uses less digits than its factorization.

308930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30900.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 308930 is about 555.8147173294. The cubic root of 308930 is about 67.6010375294.

The spelling of 308930 in words is "three hundred eight thousand, nine hundred thirty".