Source: Noto Sans Symbols

U+2170 Small Roman Numeral One

U+2170 was added in Unicode version 1.1 in 1993. It belongs to the block U+2150 to U+218F Number Forms in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Letter Number and is mainly used in the Latin script. The codepoint has the numeric value 1. Its uppercase variant is Roman Numeral One and its titlecase variant is Roman Numeral One.

The glyph is a compatibility version of the glyph Latin Small Letter I. Its width in East Asian texts is determined by its context. It can be displayed wide or narrow. In bidirectional text it is written from left to right. When changing direction it is not mirrored. If its East Asian Width is “narrow”, U+2170 forms a word with similar characters, which prevents a line break inside it. Otherwise it allows line breaks around it, except in some numeric contexts. The glyph can be confused with one other glyph.

Representations

System	Representation
Nº	8560
UTF-8	E2 85 B0
UTF-16	21 70
UTF-32	00 00 21 70
URL-Quoted	%E2%85%B0
HTML hex reference	ⅰ
Wrong windows-1252 Mojibake	â…°
Encoding: EUC-KR (hex bytes)	A5 A1
Encoding: JIS0208 (hex bytes)	FC F1
Encoding: JIS0208 (hex bytes)	113 A1
Adobe Glyph List	oneroman
digraph	1r

Related Characters

Roman Numeral One

Confusables

Latin Small Letter I

Elsewhere

Complete Record

Property	Value
Age (age)	1.1 (1993)
Unicode Name (na)	SMALL ROMAN NUMERAL ONE
Unicode 1 Name (na1)	—
Block (blk)	Number Forms
General Category (gc)	Letter Number
Script (sc)	Latin
Bidirectional Category (bc)	Left To Right
Combining Class (ccc)	Not Reordered
Decomposition Type (dt)	compatibility
Decomposition Mapping (dm)	Latin Small Letter I
Lowercase (Lower)	✔
Simple Lowercase Mapping (slc)	Small Roman Numeral One
Lowercase Mapping (lc)	Small Roman Numeral One
Uppercase (Upper)	✘
Simple Uppercase Mapping (suc)	Roman Numeral One
Uppercase Mapping (uc)	Roman Numeral One
Simple Titlecase Mapping (stc)	Roman Numeral One
Titlecase Mapping (tc)	Roman Numeral One
Case Folding (cf)	Small Roman Numeral One
ASCII Hex Digit (AHex)	✘
Alphabetic (Alpha)	✔
Bidi Control (Bidi_C)	✘
Bidi Mirrored (Bidi_M)	✘
Composition Exclusion (CE)	✘
Case Ignorable (CI)	✘
Changes When Casefolded (CWCF)	✘
Changes When Casemapped (CWCM)	✔
Changes When NFKC Casefolded (CWKCF)	✔
Changes When Lowercased (CWL)	✘
Changes When Titlecased (CWT)	✔
Changes When Uppercased (CWU)	✔
Cased (Cased)	✔
Full Composition Exclusion (Comp_Ex)	✘
Default Ignorable Code Point (DI)	✘
Dash (Dash)	✘
Deprecated (Dep)	✘
Diacritic (Dia)	✘
Emoji Modifier Base (EBase)	✘
Emoji Component (EComp)	✘
Emoji Modifier (EMod)	✘
Emoji Presentation (EPres)	✘
Emoji (Emoji)	✘
Extender (Ext)	✘
Extended Pictographic (ExtPict)	✘
FC NFKC Closure (FC_NFKC)	Small Roman Numeral One
Grapheme Cluster Break (GCB)	Any
Grapheme Base (Gr_Base)	✔
Grapheme Extend (Gr_Ext)	✘
Grapheme Link (Gr_Link)	✘
Hex Digit (Hex)	✘
Hyphen (Hyphen)	✘
ID Continue (IDC)	✔
ID Start (IDS)	✔
IDS Binary Operator (IDSB)	✘
IDS Trinary Operator and (IDST)	✘
IDSU (IDSU)	0
ID_Compat_Math_Continue (ID_Compat_Math_Continue)	0
ID_Compat_Math_Start (ID_Compat_Math_Start)	0
Ideographic (Ideo)	✘
InCB (InCB)	None
Indic Mantra Category (InMC)	—
Indic Positional Category (InPC)	NA
Indic Syllabic Category (InSC)	Other
Jamo Short Name (JSN)	—
Join Control (Join_C)	✘
Logical Order Exception (LOE)	✘
Math (Math)	✘
Noncharacter Code Point (NChar)	✘
NFC Quick Check (NFC_QC)	Yes
NFD Quick Check (NFD_QC)	Yes
NFKC Casefold (NFKC_CF)	Latin Small Letter I
NFKC Quick Check (NFKC_QC)	No
NFKC_SCF (NFKC_SCF)	Latin Small Letter I
NFKD Quick Check (NFKD_QC)	No
Other Alphabetic (OAlpha)	✘
Other Default Ignorable Code Point (ODI)	✘
Other Grapheme Extend (OGr_Ext)	✘
Other ID Continue (OIDC)	✘
Other ID Start (OIDS)	✘
Other Lowercase (OLower)	✔
Other Math (OMath)	✘
Other Uppercase (OUpper)	✘
Prepended Concatenation Mark (PCM)	✘
Pattern Syntax (Pat_Syn)	✘
Pattern White Space (Pat_WS)	✘
Quotation Mark (QMark)	✘
Regional Indicator (RI)	✘
Radical (Radical)	✘
Sentence Break (SB)	Lower
Soft Dotted (SD)	✘
Sentence Terminal (STerm)	✘
Terminal Punctuation (Term)	✘
Unified Ideograph (UIdeo)	✘
Variation Selector (VS)	✘
Word Break (WB)	Alphabetic Letter
White Space (WSpace)	✘
XID Continue (XIDC)	✔
XID Start (XIDS)	✔
Expands On NFC (XO_NFC)	✘
Expands On NFD (XO_NFD)	✘
Expands On NFKC (XO_NFKC)	✘
Expands On NFKD (XO_NFKD)	✘
Bidi Paired Bracket (bpb)	Small Roman Numeral One
Bidi Paired Bracket Type (bpt)	None
East Asian Width (ea)	ambiguous
Hangul Syllable Type (hst)	Not Applicable
ISO 10646 Comment (isc)	—
Joining Group (jg)	No_Joining_Group
Joining Type (jt)	Non Joining
Line Break (lb)	Ambiguous (Alphabetic or Ideographic)
Numeric Type (nt)	numeric
Numeric Value (nv)	1
Simple Case Folding (scf)	Small Roman Numeral One
Script Extension (scx)
Vertical Orientation (vo)	U