640
type: NaturalNumber
value: 640
previous: n639
next: n641
label: six hundred forty
label: sechshundertvierzig @de
label: seiscientos cuarenta @es
label: seicentoquaranta @it
label: six cent quarante @fr
label: ðeði ðimtai keturiasdeðimt @lt
label: seiscentos e quarenta @pt
label: ¹est set ètyøicet @cs
label: kuussada nelikümmend @et
roman: DCXL
log: 6.4614681763537
primefactor: n2
primefactor: n5
digitsum: n10