49 (number)
49 (forty-nine) is the natural number following 48 and preceding 50.
| Template:Numbers 40s | |
| Cardinal | 49 forty-nine |
| Ordinal | 49th forty-ninth |
| Factorization | |
| Divisors | 1, 7, 49 |
| Roman numeral | XLIX |
| Binary | 0110001 |
| Hexadecimal | 31 |
In mathematics
Forty-nine is the square of 7. It is a centered octagonal number, and a Somer pseudoprime based on 8.
It appears in the Padovan sequence, preceded by the terms 21, 28, 37 (it is the sum of the first two of these).
In science
- The atomic number of indium
Astronomy
- Messier object M49, a magnitude 10.0 galaxy in the constellation Virgo.
- The New General Catalogue object NGC 49, a spiral galaxy in the constellation Cetus.
- The Saros number of the solar eclipse series which began on -1248 February 22 and ended on 32 March 29. The duration of Saros series 49 was 1280.1 years, and it contained 72 solar eclipses.
- The Saros number of the lunar eclipse series which began on -1217 June 21 and ended on 81 August 8. The duration of Saros series 49 was 1298.1 years, and it contained 73 lunar eclipses.
In religion
- On the Hebrew calendar, the number of days of the Counting of the Omer
- The number of days and night Siddhartha Gautama spent meditating as a holy man
In other fields
Forty-nine is:
- The number of strings on a harp and the number of keys on a celesta
- I-49 is the designation for a US interstate highway in Louisiana
- The code for international direct dial phone calls to Germany
- In the title of Thomas Pynchon's novel The Crying of Lot 49
- In the title of the movie Ladder 49
- In the title of the movie 49 Up
- Funk #49, the title of a hit song by the James Gang
- Featured in the song title "49 Bye-Byes" in Crosby Stills and Nash's self-titled album
- Song: 'Days of 49” by Bob Dylan
- Bob Dylan CD: “Highway 49 Revisited”
- A 49 is a term used to describe a party after a Powwow usually held by the powwow dancers
- 49th State: Alaska
- NBC's "Today Show" Studio are located on 49th Street at Rockefeller Plaza
- New York’s Waldorf-Astoria Hotel is on 49th St. and Park Avenue
- At age 49, former PTL minister, Jim Bakker, sent to prison on fraud/tax evasion charges (1989)
- Roman numeral: XLIX
- Ernest Hemingway collection: The Fifth Column and The First Forty-Nine Stories
Sports
- '49er, the moniker of one who participated in the 1849 California Gold Rush, as well as the NFL's San Francisco 49ers
- Astros Larry Dierker's retired uniform #49
- New York Yankees Ron Guidry’s retired uniform #49
- Heavyweight boxer Rocky Marciano retired with a 49 -0 record (43 KOs)