16 (number)

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← 15 16 17 →
Cardinal sixteen
Ordinal 16th
(sixteenth)
Numeral system hexadecimal
Factorization 24
Divisors 1, 2, 4, 8, 16
Roman numeral XVI
Binary 100002
Ternary 1213
Quaternary 1004
Quinary 315
Senary 246
Octal 208
Duodecimal 1412
Hexadecimal 1016
Vigesimal G20
Base 36 G36
Hebrew ט"ז (Tet Zayin)

16 (sixteen) is the natural number following 15 and preceding 17. 16 is a composite number, and a square number, being 42 = 4 × 4. It is the smallest number with exactly five divisors, its proper divisors being 1, 2, 4 and 8.

In speech, the numbers 16 and 60 are often confused. When carefully enunciated, they differ in which syllable is stressed: 16 /sɪksˈtn/ vs 60 /ˈsɪksti/. However, in dates such as 1666 or when contrasting numbers in the teens, such as 15, 16, 17, the stress shifts to the first syllable: 16 /ˈsɪkstn/.

Sixteen is the fourth power of two. For this reason, 16 was used in weighing light objects in several cultures. The British have 16 ounces in one pound; the Chinese used to have 16 liangs in one jin. In old days, weighing was done with a beam balance to make equal splits. It would be easier to split a heap of grains into sixteen equal parts through successive divisions than to split into ten parts. Chinese Taoists did finger computation on the trigrams and hexagrams by counting the finger tips and joints of the fingers with the tip of the thumb. Each hand can count up to 16 in such manner. The Chinese abacus uses two upper beads to represent the 5s and 5 lower beads to represent the 1s, the 7 beads can represent a hexadecimal digit from 0 to 15 in each column. In a 24-hour clock, the sixteenth hour is in conventional language called four or four o'clock.

In mathematics[edit]

Sixteen is an even number and a square number.

Sixteen is the fourth power of two.

Sixteen is the only integer that equals mn and nm, for some unequal integers m and n (m = 4, n = 2, or vice versa).[1] It has this property because 22 = 2 × 2. It is also equal to 32 (see tetration).

16 is the base of the hexadecimal number system, which is used extensively in computer science.

In science[edit]

In languages[edit]

Grammar[edit]

In Spanish and Portuguese, 16 is the first compound number (Spanish: dieciséis, European Portuguese: dezasseis, Brazilian Portuguese: dezesseis); the numbers 11 (Spanish: once, Portuguese: onze) through 15 (Spanish: quince, Portuguese: quinze) have their own names.

Age 16[edit]

In sports[edit]

Many leagues and tournaments have 16 teams, for example:

In other fields[edit]

  • 16 steps make up the average bar of music in a 4/4 musical arrangement. The Roland TR-808, for instance, has 16 buttons that light up representing 16 16th notes making up a drum pattern.
  • Sixteen, Kentucky, a community in the United States
  • King of France (August 1754 – 21 January 1793) Louis XVI of France
  • There are 16 ounces in an avoirdupois pound
  • There are 16 pawns in a chess set and each player in a chess game starts with sixteen pieces
Sixteen frames of images

References[edit]

  1. ^ David Wells (1987). The Penguin Dictionary of Curious and Interesting Numbers. Penguin Books. p. 93. 
  2. ^ Mikulecky, Marga (April 2013). "Compulsory School Age Requirements" (PDF). Education Commission of the States. Retrieved January 8, 2015. 
  3. ^ "Age Of Consent By State". 
  4. ^ "Age of consent for sexual intercourse". 
  5. ^ Lesson plan explaining the reasoning behind the hip-hop slang "sixteen"
  6. ^ http://chancellerie.belgium.be/fr/content/le-16

External links[edit]