Universal Coolness Number

F37723277J

Can you figure out why this serial number from a one dollar bill got flagged in wheresgeorge when I entered it?

It has a Universal Coolness Index of 97.3%

What's a Universal Coolness Index?

The Universal Coolness Index (UCI) is a formula that evaluates each number

according to its interesting properties. The UCI has a maximum of 100.0, and

its minimum depends on the number of properties being tested. Currently, the

lowest UCI on record is under 12.5%. A number cannot score 0% on the UCI

because, by definition, it becomes cool as soon as it is identified as the

"least cool" number.

Cool Numbers currently defines six tiers of coolness. The tier

that a particular number falls into depends on its UCI score.

Extremely cool (Hall of Fame material): 99% or higher.
Very cool (Gallery material): 95.0% - 98.9%
Cool: 90% - 94.9%
Almost cool: 75% - 89.9%
So-so: 50.0% - 74.9%
Definitely uncool: 49.9% or lower.

So here's why this bill scored with a very cool score.

- This bill contains a 4-of-a-kind and 2 pairs. Only 0.15% of 8-digit numbers have this combination.
- This bill has 3 unique digits. In 0.71% of 8-digit numbers, there are 3 or fewer unique digits.
- This bill contains 2 pairs together. Only 10% of 8-digit numbers have this combination.

Awesome!

To look more into this go to coolnumbers.