24 (twenty-four) is the

natural number In mathematics, the natural numbers are the numbers 0, 1, 2, 3, and so on, possibly excluding 0. Some start counting with 0, defining the natural numbers as the non-negative integers , while others start with 1, defining them as the positive in ...

following 23 and preceding 25. It is equal to two

dozen A dozen (commonly abbreviated doz or dz) is a grouping of twelve. The dozen may be one of the earliest primitive integer groupings, perhaps because there are approximately a dozen cycles of the Moon, or months, in a cycle of the Sun, or year ...

and one sixth of a gross.

In mathematics

24 is an

even Even may refer to: General * Even (given name), a Norwegian male personal name * Even (surname), a Breton surname * Even (people), an ethnic group from Siberia and Russian Far East **Even language, a language spoken by the Evens * Odd and Even, a ...

composite number A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Accordingly it is a positive integer that has at least one divisor other than 1 and itself. Every positive integer is composite, prime numb ...

, a

highly composite number A highly composite number is a positive integer that has more divisors than all smaller positive integers. If ''d''(''n'') denotes the number of divisors of a positive integer ''n'', then a positive integer ''N'' is highly composite if ''d''(' ...

, an

abundant number In number theory, an abundant number or excessive number is a positive integer for which the sum of its proper divisors is greater than the number. The integer 12 is the first abundant number. Its proper divisors are 1, 2, 3, 4 and 6 for a total ...

, a

practical number In number theory, a practical number or panarithmic number is a positive integer n such that all smaller positive integers can be represented as sums of distinct divisors of n. For example, 12 is a practical number because all the numbers from 1 ...

, and a

congruent number In number theory, a congruent number is a positive integer that is the area of a right triangle with three rational number sides. A more general definition includes all positive rational numbers with this property. The sequence of (integer) cong ...

. The many ways 24 can be constructed inspired a children's mathematical game involving the use of any of the four standard operations on four numbers on a card to get 24 (see 24 Game). 24 is also part of the only nontrivial solution pair to the

cannonball problem In the mathematics of figurate numbers, the cannonball problem asks which numbers are both square and square pyramidal. The problem can be stated as: given a square arrangement of cannonballs, for what size squares can these cannonballs also be a ...

, and the

kissing number In geometry, the kissing number of a mathematical space is defined as the greatest number of non-overlapping unit spheres that can be arranged in that space such that they each touch a common unit sphere. For a given sphere packing (arrangement o ...

in 4-dimensional space. An

icositetragon In geometry, an icositetragon (or icosikaitetragon) or 24-gon is a twenty-four-sided polygon. The sum of any icositetragon's interior angles is 3960 degrees. Regular icositetragon The ''regular polygon, regular icositetragon'' is represented by S ...

is a

regular polygon In Euclidean geometry, a regular polygon is a polygon that is Equiangular polygon, direct equiangular (all angles are equal in measure) and Equilateral polygon, equilateral (all sides have the same length). Regular polygons may be either ''convex ...

with 24 sides. A

tesseract In geometry, a tesseract or 4-cube is a four-dimensional hypercube, analogous to a two-dimensional square and a three-dimensional cube. Just as the perimeter of the square consists of four edges and the surface of the cube consists of six ...

has 24 two-dimensional

square In geometry, a square is a regular polygon, regular quadrilateral. It has four straight sides of equal length and four equal angles. Squares are special cases of rectangles, which have four equal angles, and of rhombuses, which have four equal si ...

faces.

In religion

*In Christian

apocalyptic literature Apocalyptic literature is a genre of prophetical writing that developed in post- Exilic Jewish culture and was popular among millennialist early Christians. '' Apocalypse'' () is a Greek word meaning "revelation", "an unveiling or unfolding o ...

it represents the complete Church, being the sum of the 12

tribes of Israel The Twelve Tribes of Israel ( , ) are described in the Hebrew Bible as being the descendants of Jacob, a Hebrew patriarch who was a son of Isaac and thereby a grandson of Abraham. Jacob, later known as Israel, had a total of twelve sons, from ...

and the 12

Apostles An apostle (), in its literal sense, is an emissary. The word is derived from Ancient Greek ἀπόστολος (''apóstolos''), literally "one who is sent off", itself derived from the verb ἀποστέλλειν (''apostéllein''), "to se ...

of the Lamb of God. For example, in ''

The Book of Revelation The Book of Revelation, also known as the Book of the Apocalypse or the Apocalypse of John, is the final book of the New Testament, and therefore the final book of the Christian Bible. Written in Greek, its title is derived from the first w ...

'': "Surrounding the throne were twenty-four other thrones, and seated on them were twenty-four elders. They were dressed in white and had crowns of gold on their heads." *Number of

Tirthankaras In Jainism, a ''Tirthankara'' (; ) is a saviour and supreme preacher of the ''dharma'' (righteous path). The word ''tirthankara'' signifies the founder of a '' tirtha'', a fordable passage across '' saṃsāra'', the sea of interminable birt ...

Jainism Jainism ( ), also known as Jain Dharma, is an Indian religions, Indian religion whose three main pillars are nonviolence (), asceticism (), and a rejection of all simplistic and one-sided views of truth and reality (). Jainism traces its s ...

. *Number of spokes in the

Ashoka Chakra The Ashoka Chakra (Transl: Ashoka's wheel) is an Indian symbol which is a depiction of the dharmachakra (English: "wheel of dharma"). It is so-called because it appears on a number of edicts of Ashoka the Great, most prominent among which is ...

In culture

*In

Brazil Brazil, officially the Federative Republic of Brazil, is the largest country in South America. It is the world's List of countries and dependencies by area, fifth-largest country by area and the List of countries and dependencies by population ...

, twenty-four is associated with

homosexuality Homosexuality is romantic attraction, sexual attraction, or Human sexual activity, sexual behavior between people of the same sex or gender. As a sexual orientation, homosexuality is "an enduring pattern of emotional, romantic, and/or sexu ...

as it is the number that stands for the

deer A deer (: deer) or true deer is a hoofed ruminant ungulate of the family Cervidae (informally the deer family). Cervidae is divided into subfamilies Cervinae (which includes, among others, muntjac, elk (wapiti), red deer, and fallow deer) ...

in a game known as “ jogo do bicho”.

References

External links

My Favorite Numbers: 24
John C. Baez {{DEFAULTSORT:24 (Number) Integers