$fn=50;

difference(){
//body    
    intersection(){
        cube(30,center=true);
        sphere(22);
}
//numbers
    //1
    translate([15, 0, 0])
        sphere(2.5);

    //2
    translate([3,15,3])
        sphere(2.5);

    translate([-3, 15, -3])
        sphere(2.5);

    //3
    translate([-6,-6,15])
        sphere(2.5);

    translate([6, 6, 15])
        sphere(2.5);

    translate([0, 0, 15])
        sphere(2.5);

    //4
    translate([6,6,-15])
        sphere(2.5);

    translate([6, -6, -15])
        sphere(2.5);

    translate([-6, 6, -15])
        sphere(2.5);

    translate([-6, -6, -15])
        sphere(2.5);

    //5
    translate([6,-15,6])
        sphere(2.5);

    translate([6, -15, -6])
        sphere(2.5);

    translate([-6, -15, 6])
        sphere(2.5);

    translate([-6, -15, -6])
        sphere(2.5);

    translate([0, -15, 0])
        sphere(2.5);

    //6
    translate([-15,5,8])
        sphere(2.5);

    translate([-15,5,0])
        sphere(2.5);

    translate([-15,5,-8])
        sphere(2.5);

    translate([-15,-5,8])
        sphere(2.5);

    translate([-15,-5,0])
        sphere(2.5);

    translate([-15,-5,-8])
        sphere(2.5);

}