Ten is a number denoting the shift towards a new counting system which is nowadays the most popular in the world. Ten consists of two digits - one and zero.  

Unicode presents several "tens" that can be used as [URL /en/unicode/blocks/dingbats/ dingbats]. For example, when editing and decorating numbered lists, chapters, paragraphs, menu options, and book contents. Among such dingbats – number 10, enclosed in a circle. In addition, we have another, more contrasting ten inside a filled black circle [U:277F].