This number is your number in scientific notation.
Java does it by default with float data type.
A common recommendation is to use the java's BigDecimal class instead.

ps : a link that should give you some hints

Or use double instead of float.

1. double x = 30e7;
2. double y = x + 1;
3. println(x + " " + y);
4. println(x == y);

With floats, we get same value and true.

Thanks for the responses, but I don't really know what the double function presented above is doing. I realize it's in scientific notation but I want it to simply be a long decimal. I looked at the BigDecimal class and it seemed extremely confusing. I'm not really a programmer and Processing is my first langage. I just need the number so I can use it in a map() function. I'm not sure if the BigDecimal format will work with that. Can anybody tell me explicitly how to do this?

Nevermind! Simply using an int as opposed to a float has solved my problem in this instance! Thanks for the help!