30020100 has 108 divisors (see below), whose sum is σ = 95587632. Its totient is φ = 7268800.

The previous prime is 30020051. The next prime is 30020119. The reversal of 30020100 is 102003.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 35887 + ... + 36713.

Almost surely, 2^30020100 is an apocalyptic number.

30020100 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 30020100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47793816).

30020100 is an abundant number, since it is smaller than the sum of its proper divisors (65567532).

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

30020100 is a wasteful number, since it uses less digits than its factorization.

30020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 30020100 is about 5479.0601383814. The cubic root of 30020100 is about 310.7926299623.

Adding to 30020100 its reverse (102003), we get a palindrome (30122103).

The spelling of 30020100 in words is "thirty million, twenty thousand, one hundred".