What is a 30-digit number?

A 30-digit number is a number that has 30 digits where the first digit must be 1 or greater. On this page, we will answer three questions for you: What is the smallest 30-digit number? What is the largest 30-digit number? How many 30-digit numbers are there?

Smallest 30-digit number
The smallest 30-digit number is 1 followed by 29 zeros. This number is called one hundred octillion.

Largest 30-digit number
The largest 30-digit number is 9 followed by another 29 nines. This number is called nine hundred ninety-nine octillion nine hundred ninety-nine septillion nine hundred ninety-nine sextillion nine hundred ninety-nine quintillion nine hundred ninety-nine quadrillion nine hundred ninety-nine trillion nine hundred ninety-nine billion nine hundred ninety-nine million nine hundred ninety-nine thousand nine hundred ninety-nine.

Total number of 30-digit numbers
There are a total of nine hundred octillion different 30-digit numbers. nine hundred octillion is 9 followed by 29 zeros.

Digit Numbers
Here you can learn about another digit number.

What is a 31-digit number?
Go here for information about the next digit number on our list that we have information about.