‘Zero numbers’ have always added up for me

As I’ve said, I have always loved words. Well, as I thought about it, I also have a fondness for numbers (not anything to do with mathematical calculations, no) but how the numbers fit together. What does the repetition of a number mean? What does a total signify?
Any time there is a ‘zero’ at the end of a few numbers, it usually signifies an ending and/or beginning, especially for my birthday years. I was born in a year that ended in zero. This birthday coming is on March 24,