👉 The 30th, also known as a "Thirty", is a numeral in many systems of number system. It represents a number that is divisible by 10 and which is not exactly divisible by 9 (since it's less than 10). For example: 30 divided by 10 yields a remainder of 0, so the result is also divisible by 10. In some contexts, it can be used as a placeholder for numbers that are part of