30100000 has 144 divisors (see below), whose sum is σ = 86619456. Its totient is φ = 10080000.

The previous prime is 30099997. The next prime is 30100003. The reversal of 30100000 is 103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30099997) and next prime (30100003).

It is a Harshad number since it is a multiple of its sum of digits (4).

It is not an unprimeable number, because it can be changed into a prime (30100003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 699979 + ... + 700021.

It is an arithmetic number, because the mean of its divisors is an integer number (601524).

Almost surely, 2^30100000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43309728).

30100000 is an abundant number, since it is smaller than the sum of its proper divisors (56519456).

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

30100000 is an frugal number, since it uses more digits than its factorization.

30100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 4.

The square root of 30100000 is about 5486.3466897381. The cubic root of 30100000 is about 311.0681157515.

Adding to 30100000 its reverse (103), we get a palindrome (30100103).

The spelling of 30100000 in words is "thirty million, one hundred thousand".