What is Dimensional Formula of Hubble constant ?

Hubble constant can be defined as the ratio of receding velocity of  an extra galactic object to the distance of that object.

Mathematically,

Hubble constant(H_o) = Receding velocity(v)/distance(d) .

Dimensional Formula of Receding velocity = M⁰L¹T^-1
Dimensional Formula of Distance = M⁰L¹T⁰

Putting these values in the given equation we get,

Dimensional Formula of Hubble constant = M⁰L⁰T^-1
SI Unit of Hubble Constant is sec^-1.