#Jolf, 11 bytes, RikerW, A011551

Code:

c*mf^+91x~P 

Explanation:

 +91 # add(9, 1) = 10 ^ x # 10 ** input mf # floor function (no-op) * ~P # multiply by phi c # ¯\_(ツ)_/¯ 

Try it here.

Jolf, 11 bytes, RikerW, A011551

Code:

c*mf^+91x~P 

Explanation:

 +91 # add(9, 1) = 10 ^ x # 10 ** input mf # floor function (no-op) * ~P # multiply by phi c # ¯\_(ツ)_/¯ 

Try it here.

#Jolf, 11 bytes, RikerW, A011551

Code:

c*mf^+91x~P 

Explanation:

 +91 # add(9, 1) = 10 ^ x # 10 ** input mf # floor function (no-op) * ~P # multiply by phi c # ¯\_(ツ)_/¯ 

Try it here.

#Jolf, 11 bytes, RikerW, A011551

Code:

c*mf^+91x~P 

Explanation:

 +91 # add(9, 1) = 10 ^ x # 10 ** input mf # floor function (no-op) * ~P # multiply by phi c # ¯\_(ツ)_/¯ 

Try it here.

#Jolf, 11 bytes, RikerW

Code:

c*mf^+91x~P 

Try it here.

#Jolf, 11 bytes, RikerW, A011551

Code:

c*mf^+91x~P 

Explanation:

 +91 # add(9, 1) = 10 ^ x # 10 ** input mf # floor function (no-op) * ~P # multiply by phi c # ¯\_(ツ)_/¯ 

Try it here.