$2002^{2002} =(2002^{667})^3. (10^3+10^3+1^3+1^3) $
$=(2002^{667}×10)^3+(2002^{667}×10)^3+(2002^{667}×1)^3+(2002^{667}×1)^3$
It seems $t=4$ is minimum as 2002 can be expressed as a minimum of 4 cubes.
$2002^{2002} =(2002^{667})^3. (10^3+10^3+1^3+1^3) $
$=(2002^{667}×10)^3+(2002^{667}×10)^3+(2002^{667}×1)^3+(2002^{667}×1)^3$
It seems $t=4$ is minimum as 2002 can be expressed as a minimum of 4 cubes.