20 (alƙalami)

ashirin
positive integer (en) , abundant number (en) , even number (en) , dodecahedral number (en) , pronic number (en) , tetrahedral number (en) , magic number (en) , admirable number (en) , composite number (en) da harshad number (en)
Bayanai
Name in hiero markup (en)	V20-V20
Mabiyi	19
Ta biyo baya	21
Prime factor (en)	biyu da biyar
Mathematical inverse (en)	−20 (mul)

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