201 (number)

201 (two hundred [and] one) is the natural number following 200 and preceding 202.

In mathematics

As the two factors of 201 are both Gaussian primes, 201 is a Blum integer.

201 is a Harshad number in base 10.

In computing

• 201 is an HTTP status code indicating a new resource was successfully created in response to the request, with the textual part of the response line indicating the URL of the newly created document.

In astronomy

• 201 is a Saros cycle; the next solar eclipse in this cycle is predicted to take place in AD 3223..
• The New General Catalogue object NGC201 is a magnitude 15 spiral galaxy in the constellation Cetus.
• 201 Penelope is a large Main belt asteroid discovered in 1879.

In other fields

• A 201 file is a set of documents maintained by the US government for members of the Armed Forces. It is also referred to as the Official Military Personnel File.
• HTTP status code 201 indicates the success of a POST command, with the textual part of the response line indicating the URI by which the newly created document should be known.
• 201 in binary (11001001) is the title of an episode of Star Trek: The Next Generation.
• Area code 201 is the area code assigned to northern New Jersey in the United States.
• 201 is the course number of basic or entry-level courses at some Canadian universities (such as the University of Calgary and Athabasca University), especially if the number 101 is allocated to remedial courses.
• 201 is also short for 201 Poplar, the jail in Memphis, Tennessee, and alluded to in many rap songs from Memphis artists.
• in Philippine employment, a 201 file is a file detailing an employee's history and records with a particular employer
• The 201 Class diesel locomotive used by Iarnród Éireann and NI Railways.
• The 201 series is a Japanese commuter train type
• The EMI 201 television camera use in the 1960s
• "201" is the title of an episode of South Park.