• Source: 52 (number)

52 (fifty-two) is the natural number following 51 and preceding 53.




In mathematics


Fifty-two is

a composite number; a square-prime, of the form p2 · q , where q is some prime larger than p . It is the sixth of this form and the fifth of the form 22 · q .
the 5th Bell number, the number of ways to partition a set of 5 objects.
a decagonal number.
with an aliquot sum of 46; within an aliquot sequence of seven composite numbers { 52, 46, 26, 16, 15, 9, 4, 3, 1, 0 } to the prime in the 3-aliquot tree. This sequence does not extend above 52 because it is,
an untouchable number, since it is never the sum of proper divisors of any number, and it is
a noncototient since it is not equal to x − φ(x) for any x .
a vertically symmetrical number.




In science


The atomic number of tellurium




= Astronomy

=
Messier object M52, a magnitude 8.0 open cluster in the constellation Cassiopeia, also known as NGC 7654.
The New General Catalogue object NGC 52, a spiral galaxy in the constellation Pegasus.




In other fields



Fifty-two is:

The approximate number of weeks in a year. 52 weeks is 364 days, while the tropical year is 365.24 days long. According to ISO 8601, most years have 52 weeks while some have 53.
A significant number in the Mayan calendar
On the modern piano, the number of white keys (notes in the C major scale)
The number of cards in a standard deck of playing cards, not counting Jokers or advertisement cards
The name of a practical joke card game "52 card pickup"
52 Pick-Up is a 1986 film starring Roy Scheider and Ann Margaret
The code for international direct dial phone calls to Mexico
A weekly comic series from DC Comics entitled 52 has 52 issues, with a plot spanning one full year.
The New 52 is a 2011 revamp and relaunch by DC Comics of its entire line of ongoing monthly superhero books.
There are 52 letters in the English alphabet, if majuscules are distinguished from minuscules
The number of the French department Haute-Marne
52nd Street (disambiguation)
52 Hand Blocks, a variant of the martial art jailhouse rock.
52 is the car number of retired NASCAR driver Jimmy Means
52 American hostages were held in the Iran hostage crisis
The number of the laps of the British Grand Prix since 2010.




Historical years


52 BC, AD 52, 1952, 2052 etc.




See also


B52 (disambiguation)
List of highways numbered 52




References

Kata Kunci Pencarian:

• Secret Number
• 52 (angka)
• Boeing B-52 Stratofortress
• Gaetano Gandolfi
• Pengikatan nitrogen
• Love Scene Number
• Bola armiler
• Kevin Diks
• Nuova Cronica
• Number 1 to Infinity
• 52 (number)
• 52
• The B-52's (album)
• List of highways numbered 52
• 53 (number)
• 4
• The New 52
• 51 (number)
• New York State Route 52
• Lock and Dam Number 52