30130280 has 16 divisors (see below), whose sum is σ = 67793220. Its totient is φ = 12052096.

The previous prime is 30130277. The next prime is 30130283. The reversal of 30130280 is 8203103.

It is an interprime number because it is at equal distance from previous prime (30130277) and next prime (30130283).

It can be written as a sum of positive squares in 2 ways, for example, as 29181604 + 948676 = 5402^2 + 974^2 .

It is not an unprimeable number, because it can be changed into a prime (30130283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 376589 + ... + 376668.

Almost surely, 2^30130280 is an apocalyptic number.

It is an amenable number.

30130280 is an abundant number, since it is smaller than the sum of its proper divisors (37662940).

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

30130280 is a wasteful number, since it uses less digits than its factorization.

30130280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753268 (or 753264 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 30130280 is about 5489.1055737706. The cubic root of 30130280 is about 311.1723902345.

Adding to 30130280 its reverse (8203103), we get a palindrome (38333383).

The spelling of 30130280 in words is "thirty million, one hundred thirty thousand, two hundred eighty".