# Keyword Analysis & Research: 30

## Keyword Research: People who searched 30 also searched

What is the meaning of 30?

Age 30 The minimum age for United States senators. In some regions of the continental United States, the 30th birthday is celebrated by gifting sticks. [citation needed] In other fields Thirtyis: Used (as –30–) to indicate the end of a newspaper (or broadcast) story, a copy editor's typographical notation

Is 30 a natural number?

30(thirty) is the natural numberfollowing 29and preceding 31. In mathematics 30 is a square pyramidal number. 30 is an even, composite, pronic number. With 2, 3, and 5as its prime factors, it is a regular numberand the first sphenic number, the smallest of the form 2×3×r{\displaystyle 2 imes 3 imes r}, where ris a prime greater than 3.

Is 30 a perfect number?

Adding up some subsets of its divisors (e.g., 5, 10 and 15) gives 30, hence 30 is a semiperfect number. 30 is the largest number such that all coprimes smaller than itself, except for 1, are prime. A polygon with thirty sides is called a triacontagon. The icosahedron and the dodecahedron are Platonic solids with 30 edges.