169 (number)
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169 is the natural number following 168 and preceding 170.
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| 169 | |||
|---|---|---|---|
| Cardinal | one hundred [and] sixty-nine |
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| Ordinal | 169th | ||
| Factorization | 169 = 132 | ||
| Roman numeral | CLXIX | ||
| Binary | 10101001 | ||
| Hexadecimal | A9 | ||
Contents |
[edit] In mathematics
- 169 is an odd number
- 169 is a square number. 13 x 13 = 169, and the reverse 31 x 31 = 961
- Being 13 squared, 169 is one of the few squares to also be a centered hexagonal number. But like any other odd square, it is a centered octagonal number
- 169 is an odd-indexed Pell number, thus it is also a Markov number, appearing in the solutions (2, 169, 985), (2, 29, 169), (29, 169, 14701), ...
- 169 is the sum of seven consecutive primes: 13 + 17 + 19 + 23 + 29 + 31 + 37
- 169 is a composite number
- 169 is a deficient number, as 14 is less than 169
- Divisors: 1, 13, 169
[edit] In astronomy
- 169 Zelia is a bright main belt asteroid
- Gliese 169 is an orange, main sequence (K7 V) star in the constellation Taurus
- QSO B0307+169 is a quasar in the constellation Aries
- Sayh al Uhaymir 169 is a 206g lunar meteorite found in Sultanate of Oman
[edit] In geography
- 169th meridian east and 169th meridian west
- Bryan, Texas is 169 miles south of Dallas
- Pittville No. 169, Saskatchewan is a rural municipality in Saskatchewan, Canada
- The American Watch Tool Company at 169 Elm Street in Waltham, Massachusetts
- The Oak Island Lighthouse on Oak Island, North Carolina is 169 feet in height
- The Thames River flows 169 miles through Ontario, Canada
[edit] In the military
- USNS Private Jose F. Valdez (T-AG-169) was a United States Navy technical research ship during the 1960s
- USS Chatham (AK-169) was a United States Navy Alamosa-class cargo ship during World War II
- USS Gallatin (APA-169) was a United States Navy Haskell-class attack transport during World War II
- USS Foote (DD-169) was a United States Navy Wickes-class destroyer following World War I
- USS Atherton (DE-169) was a United States Navy Cannon-class destroyer escort during World War II
- USS Dolphin (SS-169) was a United States Navy submarine during World War II
- 169th Battalion, CEF unit in the Canadian Expeditionary Force during the World War I
- 169th Fires Brigade the US Army National Guard artillery brigade, a part of the Colorado Army National Guard
- The United States Air Force's 169th Fighter Wing fighter unit at McEntire Joint National Guard Station, South Carolina
- 169 or 169th Squadrons
- 169th Airlift Squadron, a unit of the U.S. Air Force
- Marine Light Attack Helicopter Squadron 169, United States Marine Corps Light Attack Helicopter Squadron
- No. 169 Squadron RAF, a unit of the United Kingdom Royal Air Force
[edit] In transportation
- The Alfa Romeo 169 car is expected to be the replacement for the Alfa Romeo 166
- Metro Transit Route 169 in Seattle
- 169th Street station on the IND Queens Boulevard Line of the New York City Subway served by the E and F trains
- 169th Street was a station on the demolished IRT Third Avenue Line of the New York City Subway
- The Ticonderoga was a 169- foot steam clipper displacing 1,089 tons, launched in 1849 at Williamsburg, New York
- Thomas Sopwith, an English aviation pioneer flew flew 169 miles (272 km) in 3 hours, 40 minutes on December 18, 1910
- Highways and routes numbered 169 include:
- U.S. Route 169 runs from Virginia, Minnesota to Tulsa, Oklahoma
- Bannered routes of U.S. Route 169 (with exits in Oklahoma, Missouri, and Iowa)
- Arizona State Route 169
- California State Route 169
- Route 169 runs from Norwich, Connecticut to Charlton, Massachusetts
- Illinois Route 169
- Massachusetts Route 169
- M-169, Michigan was a state highway route in Michigan that connected US 27 and M-55
- Minnesota State Highway 169
- Nevada State Route 169
- New Jersey Route 169
- New York State Route 169
- Ohio State Route 169
- Tennessee State Route 169
- Texas State Highway Spur 69
- Utah State Route 169
- Virginia State Route 169
- Washington State Route 169
- Wisconsin Highway 169
- Highway 169 is a defunct highway in Ontario
- Quebec Route 169
- National Route 169 is a national highway of Japan connecting Nara, Nara and Shingū, Wakayama
- U.S. Route 169 runs from Virginia, Minnesota to Tulsa, Oklahoma
[edit] In TV and radio
- The IEC 169-2 connector TV aerial plug
- Channel 169 on The Dish Network is Nick Jr.
- Channel 169 on XM Satellite Radio is The Power, an African-American talk channel
[edit] In other fields
169 is also:
- The year AD 169 or 169 BC
- 169 AH is a year in the Islamic calendar that corresponds to 785 – 786 CE
- The atomic number of an element temporarily called Unhexennium
- 169 is the number of nonequivalent starting hands in the card game Texas hold 'em
- 169 is on the scoreboard on the video game Guitar Hero along with the number 666
- 169 is known in the computing world as the first number of an automatic IPv4 address assigned by TCP/IP when no external networking device is contactable
- Minuscule 169 is a Greek minuscule manuscript of the New Testament, on parchment
- Buddha Dordenma, a Shakyamuni Buddha statue statue under construction in the mountains of Bhutan, once completed, would be among the tallest Buddha rupas in the world at 169 feet
[edit] See also
- List of highways numbered 169
- United States Supreme Court cases, Volume 169
- United Nations Security Council Resolution 169
- St. Joseph Community Consolidated School District 169
[edit] External links
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Wikimedia Commons has media related to: 169 (number) |
