I'm generating an order number based on the unix timestamp and a random number added to the end to make sure that it is a globally unique number.
The number ends up being really long and I would like to put some letters in it.
Is there a good way to take the generated numbers and convert it to something shorter with letters in it. Or a better way to generate a unique identifier with letters. I used the unix time since it makes sure that all orders have a different number.
Here is a sample number: