Twenty-one   •   21

Vingt et un - Vientiuno - Yirmi bir - Dvadeset i jedan - Έικοσί ένα

Digit sum:

3

Factors:

3, 7

Own sum:

21 + 21 = 42

Own product:

21 x 21 = 441

Own exponent:

21²¹ = 5.842587018386⋅10²⁷

Quotients:

100 / 21 = 4 Rest 16
1000 / 21 = 47 Rest 13

Sum:

∑ 21 = 231

Fakultory:

21! = 5.1090942171709⋅10¹⁹

Magic sum of the 21x21-Square:

M(21) = 4641

Dual numer:

10101

Hexadecimal number:

15

Octal number:

25

Arabic cipher:

۲۱

Latin cipher:

XXI

Indian cipher:

੨੧

Thai cipher:

๒๑

Chinese cipher:

二十一

Cheiro value:

6

Pythagoras value:

3

Rider-Waite-Smith-Tarot:

The World

Tarot de Marseilles:

Le Monde

Letter value:

300

English:

U

Latin:

X

Greek:

τ (Tau)

Hebrew:

ש (Shin, "Tooth")

Arabic:

ش (Shin)

Armenic:

Յ (Yi)

Georgic:

ტ (Tar)

Cyrillic:

Т (Te)

Coptic:

(Tau)

Ancient egyptian: