Oh, dude, an 18-digit number is called... wait for it... an 18-digit number! Like, it's literally just a number with 18 digits. So, if you ever need to describe a number with 18 digits, you can impress your friends by calling it an 18-digit number. Mind-blowing, right?
It is called a 28-digit number!
A quintillion is a number with 18 zeros (19 digits). A 20-digit number would be 10's of a quintillion (20 digits since we add one more digit to the left).
Oh, dude, a 28-digit number is called a "28-digit number." Like, it's not rocket science, you know? Just count the digits and there you have it. No need for fancy terms or anything, just keep it simple.
A 1000-digit number is called a "millidigit" number. The prefix "milli-" denotes one thousandth, so a millidigit number is a number consisting of 1000 digits. In the realm of mathematics, such large numbers are often encountered in fields like cryptography, number theory, and computer science.
Just that - a 26-digit number. There is no special name for that.
It is called a 28-digit number!
A very big number! In Europe an 18 digit number is in the trillions. In the US an 18 digit number is in the quintillions. Lots of room for misunderstanding here, best to use scientific notation!
A quintillion is a number with 18 zeros (19 digits). A 20-digit number would be 10's of a quintillion (20 digits since we add one more digit to the left).
Oh, dude, a 28-digit number is called a "28-digit number." Like, it's not rocket science, you know? Just count the digits and there you have it. No need for fancy terms or anything, just keep it simple.
63
The value of a digit in a number is called its place value.
We generally refer to them by the number of digits. Two-digit number, three-digit number, etc.
A 1000-digit number is called a "millidigit" number. The prefix "milli-" denotes one thousandth, so a millidigit number is a number consisting of 1000 digits. In the realm of mathematics, such large numbers are often encountered in fields like cryptography, number theory, and computer science.
digit
Just that - a 26-digit number. There is no special name for that.
a long number
A 400-digit number is typically referred to as a "400-digit number." In mathematics, numbers are categorized by their number of digits, such as single-digit numbers, double-digit numbers, triple-digit numbers, and so on. Therefore, a number with 400 digits would simply be called a "400-digit number."