Twenty four

The twenty-four (24) is the natural number that follows 23 and precedes 25.

Math

• The 24 is a composite number, which has the following divisors: 1, 2, 3, 4, 6, 8 and 12, this makes it the smallest number with exactly eight divisors. As the sum of its own dividers is 36 /2005 24, it is an abundant number. The sum of its dividers 1, 2, 3, 4, 6, 8, 12, 24 = 60.
• A highly composite number.
• 24 is the factorial of 4, since 24 = 1·2·3·4.
• 24 is the sum of the twin prime numbers 11 and 13.
• In the IF Prefix, 10²⁴ corresponds to Yotta (Y), and for 10^-24 this corresponds to the Yocto (and), being these the largest and smaller number respectively that can receive a Prefix SI to date.
• 24 can be written with Four four as follows:
  4 · 4 + 4 + 4
• 24 is the only non-trivial solution for the problem of cannon bullets, that is, 1² + 2² +3² +... + 24² is a perfect square (70)²). (Trivial case is 1² = 1²)
• 24 is the twelfth number par.
• It's a semi-perfect number.
• It's a Harshad number.

• 24-cell is the regular convex 4-cop with Schläfli symbol {3, 4, 3}.

24-Cell two-dimensional representation.

• Harshad number.
• Number of osculation in the space of 4 dimensions.
• Refactorable number.
• There are 10 solutions for the equation φ (x) = 24.
• It's a semi-mechanical number.
• The teseracto has 24 two-dimensional faces (which are all square).
• Modular discrimination Δ (Δ) is proportional to the power 24 of Dedekind's eta function MIL (Δ): Δ (Δ) = (2π) ¹² MIL (Δ) ²⁴.
• A practical number.

Chemistry

• It is the atomic number of chromium (Cr).
• The pure gold (Au) has 24 carats.
• 24! is an approximation (over 3%) of Avogadro's constant.

Astronomy

• 24 is the number of hours of the day and the number of hours.
• Messier M24 object is a star cloud in the Sagittarius constellation.
• Object of the New General Catalog NGC 24 is a spiral galaxy in the constellation of the Sculptor.
• (24) Themis is an asteroid belonging to the asteroid belt.

In language

• It's the number of letters in the Greek alphabet.

Other relationships

• 24 is the number of cycles in the Chinese Solar Cycle
• 24 is the number of whims composed by Paganini.
• 24 is the number of frames per second in which a film is normally projected.