1

digit one (U+0031)

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U+0031
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Unicode Code Point
1
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Character
digit one
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Name

1 (Digit One, U+0031) is the essential Unicode character representing the numerical value of one. This foundational symbol of the Hindu-Arabic numeral system is encountered everywhere, from everyday counting and mathematical equations to numbering lists, financial documents, and the binary code that underpins digital technology. Visually, it typically presents as a simple, upright vertical stroke, often enhanced with a small serif or hook at the top and sometimes a base line for clarity, though its exact shape is highly dependent on the typeface. Its origin as a single mark for counting is ancient, echoing the earliest tally systems. Beyond its standard form, Unicode also provides many related variations, such as fullwidth, circled, and superscript versions, catering to its wide range of uses across different languages and contexts.

Description

1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sports, where it commonly denotes the first, leading, or top thing in a group. 1 is the unit of counting or measurement, a determiner for singular nouns, and a gender-neutral pronoun. Historically, the representation of 1 evolved from ancient Sumerian and Babylonian symbols to the modern Arabic numeral. In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number. In digital technology, 1 represents the "on" state in binary code, the foundation of computing. Philosophically, 1 symbolizes the ultimate reality or source of existence in various traditions.

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Definitions

(noun) the smallest whole number or a numeral representing this number. Synonyms: one, I, ace, single, unity. Examples: "He has the one but will need a two and three to go with it." "They had lunch at one."
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Noun Definition 1
(adj) used of a single unit or thing; not two or more. Synonyms: one, i, ane. Example: "`ane' is scottish."
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Adjective Definition 1

Synonyms

one
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Synonym 1
i
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Synonym 2
ace
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Synonym 3
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Synonym 4
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Synonym 5
ane
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Synonym 6

Translations

one
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English (en)
uno
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Spanish (es)
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Русский (ru)
un
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Français (fr)
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Українська (ua)
egy
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Magyar (hu)
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Lietuvių (lt)
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Latviešu (lv)
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Eesti (et)
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ქართული (Georgian) (ka)
bir
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Türkçe (tr)
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Deutsch (de)
uno
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Italiano (it)
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Nederlands (nl)
en
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Swedish (se)
one
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English (British) (en-GB)
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Česky (cs)
um
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Português (pt)
um
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Português Brasileiro (pt-BR)
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հայերեն (Armenian) (hy)
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Қазақша (kz)
et
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Dansk (da)

Code

C, JavaScript, JSON, Java · CSS · HTML (Decimal) · HTML (Hex) · Perl · Python · Ruby · URL Escape Sequence

\u0031
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C, JavaScript, JSON, Java
\000031
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CSS
1
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HTML Entity (Decimal)
1
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HTML Entity (Hexadecimal)
\x{31}
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Perl
\u0031
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Python
\u{31}
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Ruby
1
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URL Escape Sequence

Encodings

0x31
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UTF-8 (hex)
00110001
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UTF-8 (binary)
0x0031
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UTF-16/UTF-16BE (hex)
0x3100
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UTF-16LE (hex)
0x00000031
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UTF-32/UTF-32BE (hex)
0x31000000
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UTF-32LE (hex)
\61
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Octal Escape Sequence

Bidirectional Character Type

European Number (EN)
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Bidi Class
N
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Bidi Mirrored

Unicode Data

age · AHex · Alpha · bc · Bidi_C · Bidi_M · blk · bpb · bpt · Cased · ccc · CE · cf · CI · Comp_Ex · cp · CWCF · CWCM · CWKCF · CWL · CWT · CWU · Dash · Dep · DI · Dia · dm · dt · ea · EBase · EComp · EMod · Emoji · EPres · Ext · ExtPict · FC_NFKC · gc · GCB · Gr_Base · Gr_Ext · Gr_Link · Hex · hst · Hyphen · ID_Compat_Math_Continue · ID_Compat_Math_Start · IDC · Ideo · IDS · IDSB · IDST · IDSU · InCB · InMC · InPC · InSC · jg · Join_C · jt · lb · lc · LOE · Lower · Math · MCM · na · NChar · NFC_QC · NFD_QC · NFKC_CF · NFKC_QC · NFKC_SCF · NFKD_QC · nt · nv · OAlpha · ODI · OGr_Ext · OIDC · OIDS · OLower · OMath · OUpper · Pat_Syn · Pat_WS · PCM · QMark · Radical · RI · SB · sc · scf · scx · SD · slc · stc · STerm · suc · tc · Term · uc · UIdeo · Upper · vo · VS · WB · WSpace · XIDC · XIDS · XO_NFC · XO_NFD · XO_NFKC · XO_NFKD

Comments

uno

· CheeseHead