30280 has 16 divisors (see below), whose sum is σ = 68220. Its totient is φ = 12096.

The previous prime is 30271. The next prime is 30293. The reversal of 30280 is 8203.

30280 is nontrivially palindromic in base 3.

30280 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30276 + 4 = 174^2 + 2^2 .

30280 is strictly pandigital in base 6.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 30280.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339 + ... + 418.

2³⁰²⁸⁰ is an apocalyptic number.

It is an amenable number.

30280 is an abundant number, since it is smaller than the sum of its proper divisors (37940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34110).

30280 is a wasteful number, since it uses less digits than its factorization.

30280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 30280 is about 174.0114938732. The cubic root of 30280 is about 31.1686953157.

Adding to 30280 its reverse (8203), we get a palindrome (38483).

The spelling of 30280 in words is "thirty thousand, two hundred eighty".