Input may be:

Input
Type here
Input was:0420
 ...interpreting as four-hex-char codepoint format - as U+0420
Character:         Р         (U+0420)
Character image
(experiment)
Characters near thisBefore:
А Б В Г Д Е Ж З И Й К Л М Н О П
After:
С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я
 
Some unicode data
Character nameCYRILLIC CAPITAL LETTER ER
Case changeCYRILLIC SMALL LETTER ER (U+0440)
Categoriesuppercase letter, Left-to-Right
Links elsewhere:fileformat.info/info/unicode/char/0420
codepoints.net/U+0420
Unicode blockCyrillic, U+0400 to U+04FF
(see also the according PDF on unicode.org)
NormalizationNo normalisations change the data
(does not necessarily mean nothing decomposes to this form)
 
Font info (experiment)
 
Encoding
Character stuff
Named entitynot applicable
Alt codenot applicable
String stuff
HTML/XML
numeric entities
All but basic alphanumeric encoded (hexadecimal and decimal):
Р
Р
UTF8 bytestringas hex: d0a0
(UTF8 bytestring length is 2)
URL-encoded UTF8%D0%A0
Python string
before py3k
Unicode string:
  u'\u0420'
UTF8 bytestring:
  '\xd0\xa0'
...in py3kUnicode string:
  '\u0420'
UTF8 bytestring:
  b'\xd0\xa0'
Javascript (≥1.3)"\u0420"
LaTeX
(incomplete experiment)
Character in LaTeX:
\cyrchar\CYRR
Encodings that can encode this properlyutf_8   utf_16   iso8859_5   iso2022_jp   iso2022_jp_1   iso2022_jp_2   iso2022_jp_2004   iso2022_jp_3   iso2022_jp_ext   iso2022_kr   gb2312   gbk   gb18030   big5hkscs   euc_jp   euc_jis_2004   euc_jisx0213   euc_kr   hz   johab   koi8_r   koi8_u   mac_cyrillic   ptcp154   shift_jis   shift_jis_2004   shift_jisx0213   cp855   cp866   cp932   cp949   cp1251
Encodings that will maim your dataascii   latin_1   iso8859_2   iso8859_3   iso8859_4   iso8859_6   iso8859_7   iso8859_8   iso8859_9   iso8859_10   iso8859_13   iso8859_14   iso8859_15   big5   mac_greek   mac_iceland   mac_latin2   mac_roman   mac_turkish   cp037   cp424   cp437   cp500   cp737   cp775   cp850   cp852   cp856   cp857   cp860   cp861   cp862   cp863   cp864   cp865   cp869   cp874   cp875   cp950   cp1006   cp1026   cp1140   cp1250   cp1252   cp1253   cp1254   cp1255   cp1256   cp1257   cp1258

Layout

Note that of the ~1.1 million codepoints under U+10FFFF (the current cap), ~900K are unused, ~130K are private use, and only ~100K are general-purpose graphic codepoints (about half in BMP).
Grouping used below is somewhat arbitrary, but looks halfway sensible
For more on planes, see http://en.wikipedia.org/wiki/Mapping_of_Unicode_characters#Planes

Mouseover shows a range's codepoint range, links are to unicode.org PDFs.
Nameless gray blocks are reserved, unused or restricted areas, and show their size.
If we are showing a single codepoint above, the range it is in is bolded below.


BMP - Basic Multilingual Plane:






not allocated (63)
not allocated (63)








not allocated (15)
not allocated (79)










(End of range that UCS2(-based Unicode implementations) can store)




SMP - Supplemental Multilingual Plane:
not allocated (127)
not allocated (31)
not allocated (79)
not allocated (143)
not allocated (127)
not allocated (79)
not allocated (63)
not allocated (31)
not allocated (79)
not allocated (527)
not allocated (383)
not allocated (95)
not allocated (255)
not allocated (159)
not allocated (31)
not allocated (463)
not allocated (447)
not allocated (1279)
not allocated (2943)
not allocated (13263)
not allocated (95)
not allocated (879)
not allocated (16479)
not allocated (2815)
not allocated (4943)


not allocated (175)


not allocated (127)
not allocated (4095)
not allocated (1311)
not allocated (255)






not allocated (511)
not allocated (1791)




SIP - Supplemental Ideographic Plane:
not allocated (31)
not allocated (16351)
not allocated (1503)




TIP - Tertiary Ideographic Plane (plane 3, tentatively allocated):
Small Seal Script (tentative allocation) (10528)
not allocated (223)
Oracle Bone Script (tentative allocation) (6144)
not allocated (48639)




Planes 4 through 13 - not allocated:
plane 4 (not allocated) (65536)
plane 5 (not allocated) (65536)
plane 6 (not allocated) (65536)
plane 7 (not allocated) (65536)
plane 8 (not allocated) (65536)
plane 9 (not allocated) (65536)
plane 10 (not allocated) (65536)
plane 11 (not allocated) (65536)
plane 12 (not allocated) (65536)
plane 13 (not allocated) (65536)




SSP - Supplemental Special-purpose Plane:
not allocated (127)
not allocated (65039)




PUA-A - Private Use Area A:




PUA-B - Private Use Area B: