Category:21 (number)
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| number: | (twenty-one) |
|---|---|
| instance of: | natural number, deficient number, triangular number, odd number, centered pentachoric number, octagonal number, highly touchable number, Fibonacci number, composite number and harshad number |
| other integers: | 1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · 10 · 11 · 12 · 13 · 14 · 15 · 16 · 17 · 18 · 19 · 20 · 21 · 22 · 23 · 24 · 25 · 26 · 27 · 28 · 29 · 30 · 31 · 32 · 33 · 34 · 35 · 36 · 37 · 38 · 39 · 40 · 41 0 · 10 · 20 · 30 · 40 · 50 · 60 · 70 · 80 · 90 · 100 · 110 · 120 · 130 · 140 · 150 · 160 · 170 · 180 · 190 · 200 · 210 · 220 |
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| Integer factorization | 3 × 7 | ||||
| circled character | ㉑ | ||||
| Tamil number notation using ௰, ௱, ௲ | ௨௰௧ | ||||
| Tamil number notation using ASCII 0 | ௨௧ | ||||
| Roman numeral in basic notation | XXI | ||||
| Babylonian numerals | 𒎙𒐕 | ||||
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Subcategories
This category has the following 29 subcategories, out of 29 total.
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- 21% (angle) (4 F)
0
A
B
F
G
H
I
L
M
N
- Niigata Television 21 (7 F)
O
P
S
T
- Trolleybus line 21 (Moscow) (2 F)
U
W
- The World (Major Arcana) (25 F)
Media in category "21 (number)"
The following 55 files are in this category, out of 55 total.
21 white, blue rounded rectangle.svg 325 × 250; 261 bytes
21 white, brown rounded rectangle.svg 325 × 250; 262 bytes
21 white, green rounded rectangle.svg 325 × 250; 262 bytes
21 white, red rounded rectangle.svg 325 × 250; 260 bytes
21kanal.JPG 114 × 114; 3 KB
21setram.png 35 × 35; 870 bytes
21SymOcher.png 100 × 100; 2 KB
34*21-FibonacciBlocks.png 681 × 422; 9 KB
95 Air Assault Bde training 2017 15.jpg 960 × 639; 82 KB
Augsburg Bus 21.svg 1,024 × 1,024; 5 KB
Award numeral 21.png 200 × 165; 6 KB
Bengali 21 in yellow circle.png 1,181 × 1,181; 66 KB
Bundesstrasse 21 Oesterreich.png 470 × 470; 10 KB
Carabus-L21.jpg 94 × 59; 7 KB
Cañaveral de León, Huelva 111.jpg 3,456 × 4,608; 3.32 MB
CH-Hinweissignal-Nummerntafel für Hauptstrassen.svg 48 × 40; 3 KB
City rail platform21.png 500 × 500; 20 KB
Club21logo url.jpg 250 × 250; 16 KB
Connect4 diag.svg 280 × 240; 2 KB
Cor21.jpg 116 × 49; 19 KB
Datum21.svg 156 × 156; 27 KB
Diablos21.PNG 619 × 591; 12 KB
Elongated circle 21.svg 600 × 600; 3 KB
Go 21.png 481 × 481; 45 KB
Go 21.svg 500 × 500; 483 bytes
Las130121.png 725 × 453; 65 KB
Logo línea 21 de EMT Valencia.gif 75 × 75; 937 bytes
Lottokugel-21.png 426 × 426; 25 KB
LSQ 21.jpg 194 × 188; 4 KB
McCormick Road Box.JPG 2,836 × 2,278; 1,022 KB
Montpellier t 21.png 127 × 127; 2 KB
München Tram 21 (2019).svg 260 × 152; 3 KB
München Tram 21.png 895 × 482; 10 KB
München Tram 21.svg 260 × 140; 904 bytes
München Tram N21.png 1,400 × 900; 28 KB
No21-numeroventuno-by-AlessandoroDellAcqua.png 800 × 340; 27 KB
Nr21 blue.png 16 × 16; 465 bytes
Nr21 blue.svg 16 × 16; 3 KB
Number 21 in Hindi.JPG 35 × 33; 1 KB
Pirates Roberto Clemente.png 689 × 687; 34 KB
Recycling-Code-21.svg 100 × 100; 5 KB
Regular quadrilateral with 21.png 284 × 283; 3 KB
RTBF Télé 21 logo révisé.png 165 × 167; 8 KB
Scudetto21.svg 503 × 586; 1 KB
Slovo21-logo.png 192 × 90; 6 KB
Srbija21logo.jpg 489 × 480; 14 KB
STS Ligne 21.png 27 × 23; 447 bytes
Studio 21,JPG 2014-01-07 15-43.jpg 150 × 107; 54 KB
TUCPamplona21.GIF 185 × 185; 2 KB
TUCPamplona21.svg 500 × 500; 9 KB
Vingt-un.svg 910 × 910; 532 bytes
Zlin skyscraper 01.jpg 3,596 × 2,023; 2.28 MB
Zlin skyscraper 02.jpg 2,844 × 3,792; 3.63 MB
Zlin skyscraper 03.jpg 2,776 × 3,701; 3.61 MB
_by_Friedensreich_Hundertwasser,_Akasaka,_Tokyo_Japan_(31090634948).jpg)
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