33 (number)

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(Redirected from Thirty three)

33 (thirty-three) is the natural number following 32 and preceding 34.

<< 30 31 32 33 34 35 36 37 38 39 >> List of numbers -- Integers 0 10 20 30 40 50 60 70 80 90 >>
Cardinal	33 thirty-three
Ordinal	33rd thirty-third
Factorization	<math>3\cdot 11</math>
Roman numeral	XXXIII
Binary	100001
Hexadecimal	21

1 In mathematics
2 In science
- 2.1 Astronomy
3 In other fields

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In mathematics

33 is the largest positive integer that can not be expressed as a sum of different triangular numbers. It is also the smallest odd repdigit that's not prime (unless we consider 1-digit integers to also be repdigits).

The sum of the first four factorials is 33. Adding up the sums of divisors for the 1 through 6 yields 33.

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In science

The atomic number of arsenic

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Astronomy

Messier object M33, a magnitude 7.0 galaxy in the constellation Triangulum, also known as the Triangulum Galaxy.
The New General Catalogue object NGC 33, a double star in the constellation Pisces
The Saros number of the solar eclipse series which began on -1982 August 2 and ended on -485 January 17. The duration of Saros series 33 was 1496.5 years, and it contained 84 solar eclipses.
The Saros number of the lunar eclipse series which began on -1662 May 22 and ended on -364 July 10. The duration of Saros series 33 was 1298.1 years, and it contained 73 lunar eclipses.

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In other fields

Thirty-three is also:

Historical years: 33 B.C., 33 A.D. or 1933.
Jesus's age when he was crucified in 33 A.D., according to many, though not verified historically.
Alexander the Great died at the age of thirty-three.
In reference to gramophone records, 33 refers to a type of record by its revolution speed of 33⅓ revolutions per minute. 33s are also known as long playing records, or LPs. See: 78 and 45.
A highly significant number to the Freemasons, and is one of their sacred numbers, recurring profusely throughout their 'Dogma' (as Albert Pike calls it), rituals and other miscellaneous places.
Many people claim that they see, witness, or experience the number 33 in unusual circumstances or at a frequency that defies statistical likelihood. A popular website [1] dedicated to this repdigit, and such experiences of it, hosts comments by many such people, as well as other related resources.
A significant number in modern numerology, as it is one of the master numbers along with 11 and 22.
A song by the Smashing Pumpkins on their Mellon Collie and the Infinite Sadness album and Coheed and Cambria on their The Second Stage Turbine Blade album. The songs are unrelated.
The name of episode 1 in Battlestar Galactica 2004 series.
In Spanish, the "smile to the camera" word, as is "cheese" in English. Diga treinta y tres, is the same as "say cheese".
In French, Italian, Romanian and Spanish, the word a patient is usually asked to say when a doctor is listening to his or her lungs with a stethoscope (Trente-Trois, Trentatrè, Treizeci şi trei, and Treinta y Tres).
The code for international direct dial phone calls to France.
A normal human spine has 33 vertebrae when the bones that form the coccyx are counted individually.
The number printed on all Rolling Rock beer labels.
The number of innings played in the longest baseball game in history (a 1981 minor league game between the Rochester Red Wings and the Pawtucket Red Sox in Pawtucket, Rhode Island).
The number of chapters per series of DarkSoul Kingdom, a popular online fantasy story.
Retired numbers of former basketball star Larry Bird and former baseball star Eddie Murray.
Number of Cantos in each of Dante's 3 parts of the Divine Comedy.
Number of retired hockey goalie Patrick Roy.