175 (number)

175 (one hundred [and] seventy-five) is the natural number following 174 and preceding 176.

← 174 175 176 →
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Cardinal	one hundred seventy-five
Ordinal	175th (one hundred seventy-fifth)
Factorization	5^2 × 7
Divisors	1, 5, 7, 25, 35, 175
Greek numeral	ΡΟΕ´
Roman numeral	CLXXV
Binary	101011112
Ternary	201113
Octal	2578
Duodecimal	12712
Hexadecimal	AF16

In mathematics

175 is an odd number, a composite number, and a deficient number. It is a decagonal number,[1] a 19-gonal number,[2] and a centered 29-gonal number.

175 is an Ulam number, and a Zuckerman number. It is the magic constant of the n×n normal magic square and n-Queens Problem for n = 7.

In base 10, raising the digits of 175 to powers of successive integers equals itself: 175 = 1¹ + 7²+ 5³. 135, 518, 598, and 1306 also have this property.

In astronomy

• 175 Andromache is a large and primitive main belt asteroid

In geography

• 175 Greenwich Street, Manhattan

In the military

• U-175 was a German Type IXC U-boat during World War II
• USCG coastal buoy tender is a 175-foot United States Coast Guard Keeper class of coastal buoy tender
• USNS Sgt. Curtis F. Shoup (T-AG-175) was a United States Navy Alamosa-class cargo ship following World War II
• USS Craighead (AK-175) was a United States Navy Alamosa-class cargo ship following World War II
• USS Emeline (SP-175) was a yacht during World War I
• USS Karnes (APA-175) was a United States Navy Haskell-class attack transport during World War II
• USS MacKenzie (DD-175) was a United States Navy Wickes-class destroyer during World War I
• USS Oceanside (LSM-175) was a United States Navy LSM-1-class landing ship medium during World War II
• USS Pennewill (DE-175) was a United States Navy Cannon-class destroyer escort during World War II
• USS Starlight (AP-175) was a United States Navy Storm King-class auxiliary transport during World War II
• USS Tarpon (SS-175) was a Porpoise-class diesel-electric submarine during World War II
• The 175th Battalion, CEF was a unit in the Canadian Expeditionary Force during World War I
• The 175th Fighter Squadron unit of the South Dakota Air National Guard

In movies

• Paragraph 175, a 2000 documentary on the topic, narrated by Rupert Everett

In music

• The Gibson ES-175 jazz guitar
• 175R is a Japanese ska punk band
• The song "175" by Big D and the Kids Table, off their How It Goes CD (2004)

In religion

The Bible says that Abraham lived to be 175 years old.[3]

In transportation

• 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 City on September 11, 2001
  • The 2006 documentary Flight 175: As the World Watched
• Cessna 175 Skylark single-engine airplane
• Embraer E-Jets E-175 jetliners
• British Rail Class 175
• The 175th Street—George Washington Bridge Bus Terminal subway station in Manhattan
• 174th–175th Streets subway station in the Bronx
• Peugeot Type 175 car produced from 1923–1924

In other fields

175 is also:

• The year AD 175 or 175 BC
• 175 AH is a year in the Islamic calendar that corresponds to 791 – 792 CE
• The atomic number of an element temporarily called Unseptpentium
• 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. Also a 2000 documentary, Paragraph 175

See also

• E175 (disambiguation)
• List of highways numbered 175
• United Nations Security Council Resolution 175
• United States Supreme Court cases, Volume 175
• Pennsylvania House of Representatives, District 175
• Paquete Habana; The Lola, 175 U.S. 677 (1900), a landmark United States Supreme Court case
• 175 is the fire emergency number in Lebanon

References

1. "Sloane's A001107 : 10-gonal (or decagonal) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
2. "Sloane's A051871 : 19-gonal (or enneadecagonal) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-05-28.
3. Genesis 25:7–8

External links

• Number Facts and Trivia: 175
• The Number 175
• The Positive Integer 175
• VirtueScience: 175
• Number Gossip: 175