30050280 has 96 divisors (see below), whose sum is σ = 105192360. Its totient is φ = 7395840.

The previous prime is 30050269. The next prime is 30050281. The reversal of 30050280 is 8205003.

It can be written as a sum of positive squares in 4 ways, for example, as 15350724 + 14699556 = 3918^2 + 3834^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (30050281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1470 + ... + 7890.

Almost surely, 2^30050280 is an apocalyptic number.

30050280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30050280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52596180).

30050280 is an abundant number, since it is smaller than the sum of its proper divisors (75142080).

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

30050280 is a wasteful number, since it uses less digits than its factorization.

30050280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451 (or 6444 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 30050280 is about 5481.8135685191. The cubic root of 30050280 is about 310.8967444289.

Adding to 30050280 its reverse (8205003), we get a palindrome (38255283).

The spelling of 30050280 in words is "thirty million, fifty thousand, two hundred eighty".