A natural number $n$ is considered abundant if the sum of its proper divisors (excluding $n$ itself) is greater than $n$.
To find the smallest abundant number, we can start with $n=12$ and check if it is abundant.
The proper divisors of 12 are 1, 2, 3, 4, and 6. Their sum is $1+2+3+4+6=16$, which is greater than 12.
Therefore, 12 is abundant.
The smallest abundant number is $\boxed{12}$.
The answer is: 12
Below is a math problem. Provide a detailed, step-by-step solution.

### Problem:
What is the smallest natural number that is considered abundant, meaning it is less than the sum of its proper divisors?

### Answer:
