What is 30?

Thirty is a natural number that comes after 29 and before 31 in the sequence of integers. It is an even number and is divisible by 1, 2, 3, 5, 6, 10, 15, and 30.

In mathematics, 30 is the sum of the first four squares, making it a square pyramidal number. It is also equal to the sum of the first three pentagonal numbers.

In science, 30 is the atomic number of zinc, a bluish-white metallic element that is commonly used in various industrial applications.

In sports, 30 is a significant number in basketball as it is the standard number of points in a single quarter of a game. It is also the number of teams in the NBA and the NHL.

In popular culture, the age of 30 is often considered a milestone or turning point in a person's life, with many people experiencing significant life changes or reflections during this time.