175 (number)

175 is the natural number following 174 and preceding 176. It is a decagonal number.

Template:Numbers 170s
Cardinal	One hundred [and] seventy five
Ordinal	175th
Factorization	$5^{2}\cdot 7$
Roman numeral	CLXXV
Binary	10101111
Hexadecimal	AF

175 is the magic constant of the n×n magic square and n-Queens Problem for n = 7.

In base 10, it can be observed that $175=1^{1}+7^{2}+5^{3}$. 135, 518 and 598 also have this property. Also, 175 is divisible by the product of its digits, 35, making it a Zuckerman number.

In other fields

175 also refers to

• Paragraph 175, a provision of the German Criminal Code that made homosexual acts between males a crime, and in early revisions the provision also criminalized bestiality.

• Paragraph 175, a documentary on the topic, narrated by Rupert Everett.

• United Airlines flight 175, a Boston-Los Angeles flight which crashed into the South Tower of the World Trade Center after being hijacked by terrorists in New York, New York on September 11, 2001.

• The type of frisbee used in Ultimate weighs 175 grams, and there is a song by Big D and the Kids Table by that name

For the year 175 AD, see 175.