Login
Login

10

{{Hatnote|This article is about the number. For the years, see 10 BC and AD 10. For other uses, see Ten (disambiguation).}}

{{Redirect|10th|other uses|Tenth (disambiguation)}}

{{Infobox number

| number = 10

| numeral = decimal

| divisor = 1, 2, 5, 10

| roman unicode = X, x

| greek prefix = deca-/deka-

| latin prefix = deci-

|lang1 = Chinese numeral

|lang1 symbol= 十，拾

|lang2 = Hebrew

|lang2 symbol= י (Yod)

|lang3 = Khmer

|lang3 symbol= ១០

|lang4=Armenian|lang4 symbol=Ժ|lang5 = Tamil

|lang5 symbol= ௰

|lang6 = Thai

|lang6 symbol= ๑๐

|lang7 = Devanāgarī

|lang7 symbol= १०

|lang8 = Santali

|lang8 symbol= ᱑᱐

|lang9 = Bengali

|lang9 symbol= ১০

|lang10 = Arabic & Kurdish & Iranian

|lang10 symbol= ١٠

|lang11=Malayalam

|lang11 symbol=൰

|lang12=Egyptian hieroglyph|lang12 symbol=𓎆|lang13=Babylonian numeral|lang13 symbol=𒌋}}

10 (ten) is the even natural number following 9 and preceding 11. Ten is the base of the decimal numeral system, the most common system of denoting numbers in both spoken and written language.

Linguistics

  • A collection of ten items (most often ten years) is called a decade.
  • The ordinal adjective is decimal; the distributive adjective is denary.
  • Increasing a quantity by one order of magnitude is most widely understood to mean multiplying the quantity by ten.
  • To reduce something by one tenth is to decimate. (In ancient Rome, the killing of one in ten soldiers in a cohort was the punishment for cowardice or mutiny; or, one-tenth of the able-bodied men in a village as a form of retribution, thus causing a labor shortage and threat of starvation in agrarian societies.)

Mathematics

Ten is the smallest noncototient number.{{Cite web|author=

N. J. A. Sloane|author-link=Neil Sloane|url=https://oeis.org/A005278|title=A005278: Noncototients|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-06-01}} There are exactly 10 small Pisot numbers that do not exceed the golden ratio.{{cite book | author=M.J. Bertin |author2=A. Decomps-Guilloux |author3=M. Grandet-Hugot |author4=M. Pathiaux-Delefosse |author5=J.P. Schreiber | title=Pisot and Salem Numbers | publisher=Birkhäuser | year=1992 | isbn=3-7643-2648-4 }}

= Decagon =

{{main|Decagon}}

A ten sided polygon is called a decagon.

= List of basic calculations =

class="wikitable" style="text-align: center; background: white"

! style="width:105px;" |Multiplication

!1

!2

!3

!4

!5

!6

!7

!8

!9

!10

!11

!12

!13

!14

!15

!16

!20

!25

!50

!100

!1000

10 × x

|10

|20

|30

|40

|50

|60

|70

|80

|90

|100

|110

|120

|130

|140

|150

|160

|200

|250

|500

|1000

|10000

class="wikitable" style="text-align: center; background: white"

! style="width:105px;" |Division

!1

!2

!3

!4

!5

!6

!7

!8

!9

!10

!11

!12

!13

!14

!15

10 ÷ x

|10

|5

|3.{{overline|3}}

|2.5

|2

|1.{{overline|6}}

|1.{{overline|428571}}

|1.25

|1.{{overline|1}}

|1

|0.{{overline|90}}

|0.8{{overline|3}}

|0.{{overline|769230}}

|0.{{overline|714285}}

|0.{{overline|6}}

x ÷ 10

|0.1

|0.2

|0.3

|0.4

|0.5

|0.6

|0.7

|0.8

|0.9

|1

|1.1

|1.2

|1.3

|1.4

|1.5

class="wikitable" style="text-align: center; background: white"

! style="width:105px;" |Exponentiation

!1

!2

!3

!4

!5

!6

!7

!8

!9

!10

10{{sup|x}}

|10

|100

|1000

|10000

|100000

|1000000

|10000000

|100000000

|1000000000

|10000000000

x{{sup|10}}

|1

|1024

|59049

|1048576

|9765625

|60466176

|282475249

|1073741824

|3486784401

|10000000000

Science

The metric system is based on the number 10, so converting units is done by adding or removing zeros (e.g. 1 centimetre = 10 millimetres, 1 decimetre = 10 centimetres, 1 meter = 100 centimetres, 1 dekametre = 10 meters, 1 kilometre = 1,000 meters).

Mysticism

Image:Tetractys.svg]]

In Pythagoreanism, the number 10 played an important role and was symbolized by the tetractys.

See also

{{clear right}}

Notes

{{Notelist}}

References

{{Reflist}}

External links

{{Commons category}}

{{Wiktionary|ten}}

{{Integers|zero}}

{{Authority control}}

{{DEFAULTSORT:10 (Number)}}

Category:Integers