74 (number)
Encyclopedia : 7 : 74 : 74N : 74 (number)
74 (seventy-four) is the natural number following 73 and preceding 75.
In mathematics
Seventy-four is a nontotient. There are 74 different non-Hamiltonian polyhedra with a minimum number of vertices.
| Cardinal | 74 seventy-four |
| Ordinal | 74th seventy-fourth |
| Factorization | [2 \cdot 37] |
| Roman numeral | LXXIV |
| Binary | 1001010 |
| Hexadecimal | 4A |
In science
- The atomic number of tungsten
- Messier object M74, a magnitude 10.5 spiral galaxy in the constellation Pisces
- The New General Catalogue [object] NGC 74, a galaxy in the constellation Andromeda
- The Saros [number] of the solar eclipse series which began on -615 August 8 and ended on 719 October 18. The duration of Saros series 74 was 1334.2 years, and it contained 75 solar eclipses.
- The Saros [number] of the lunar eclipse series which began on -331 May 7 and ended on 949 June 13. The duration of Saros series 74 was 1280.1 years, and it contained 72 lunar eclipses.
In other fields
Seventy-four is also:- Designates the 7400 series of Integrated Chips. 74xx xx=00-4538
- The designation of USA Interstate 74, a freeway that runs from Iowa to Ohio.
- The number of sons of Levites, Jeshua, Kadmiel, Binnui, Hodaviah, in the Census of men of Israel upon return from exile (Holy Bible, Ezra 2:40).
- The registry of the U.S. Navy's nuclear aircraft carrier USS John C. Stennis (CVN-74), named after U.S. Senator John C. Stennis.
- The year AD 74, 74 BC, or 1974.
- A third-rate man-of-war with 74 guns; see Seventy-four (ship).
- Sometimes used as a substitute for 47 on Star Trek in-jokes.
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