# 93 (number)

 ← 92 93 94 →
Cardinal ninety-three
Ordinal 93rd
(ninety-third)
Factorization 3 × 31
Divisors 1, 3, 31, 93
Roman numeral XCIII
Binary 10111012
Ternary 101103
Quaternary 11314
Quinary 3335
Senary 2336
Octal 1358
Duodecimal 7912
Vigesimal 4D20
Base 36 2L36

93 (ninety-three) is the natural number following 92 and preceding 94.

## In mathematics

93 is:

There are 93 different cyclic Gilbreath permutations on 11 elements,[9] and therefore there are 93 different real periodic points of order 11 on the Mandelbrot set.[10]

## In other fields

Ninety-three is:

In classical Persian finger counting, the number 93 is represented by a closed fist. Because of this, classical Arab and Persian poets around 1 CE referred to someone's lack of generosity by saying that the person's hand made "ninety-three".[13]

## References

1. "Sloane's A001358". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
2. "Sloane's A001748". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
3. "Sloane's A056809". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
4. "Sloane's A016105". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
5. "Sloane's A048330". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
6. "Sloane's A000959". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
7. "Sloane's A000125". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
8. "Sloane's A000926". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
9. "Sloane's A000048". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
10. Diaconis, Persi; Graham, Ron (2012), "Chapter 5: From the Gilbreath Principle to the Mandelbrot Set", Magical Mathematics: the mathematical ideas that animate great magic tricks, Princeton University Press, pp. 61–83.
11. Durand, Alain-Philippe (2002), Black, Blanc, Beur: Rap Music and Hip-Hop Culture in the Francophone World, Scarecrow Press, p. 55, ISBN 9780810844315.
12. Meltzer, Marisa; Shepherd, Julianne (March 2006), "Spitting Fire", Spin: 76–81.
13. Bloom, Jonathan M. (Spring 2002), "Hand sums: The ancient art of counting on your fingers", Boston College Magazine.