30100320 has 72 divisors (see below), whose sum is σ = 102722256. Its totient is φ = 8026368.

The previous prime is 30100303. The next prime is 30100321. The reversal of 30100320 is 2300103.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30100321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9012 + ... + 11891.

It is an arithmetic number, because the mean of its divisors is an integer number (1426698).

Almost surely, 2^30100320 is an apocalyptic number.

30100320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30100320 is an abundant number, since it is smaller than the sum of its proper divisors (72621936).

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

30100320 is a wasteful number, since it uses less digits than its factorization.

30100320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20924 (or 20913 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 30100320 is about 5486.3758529652. The cubic root of 30100320 is about 311.0692180930.

Adding to 30100320 its reverse (2300103), we get a palindrome (32400423).

The spelling of 30100320 in words is "thirty million, one hundred thousand, three hundred twenty".