20 (ashirin) alƙalami ne, tsakanin 19 da 21.

← 19 20 21 →
Cardinal ashirin
Factorization (en) Fassara 22 × 5
Greek numeral Κ´
Roman numeral XX
Binary 101002
Ternary 2023
Octal (en) Fassara 248
Dozenal system (en) Fassara 1812
Hexadecimal (en) Fassara 1416