Update geofence (Colors format)

I'm trying update the geofence data in specific the radius, but i have doubts about the parameters c (color argb )and tc (color rgb), i got the data of the geofence with get_zone_data function, this function show me the data of geofence. attach the response image. So to update the geofence i'm trying to copy the data of parameters c and tc like i got in the response of get_zone_data. But i had error 4. In the documentation of update_zone show the parameter c is int and tc is uint. My question is, what format must i put in these parameters ? Can someone put an example of the update_zone, ooh i forget tell, i'm using php. Here my code.

$params = array(
        'itemId' => 642602,// recurso sistemas
        'id'=> 11,
        'callMode'=>'update',
        'n' => 'GAS_Calle 27 De Febrero',
        'd' => 'Calle 27 De Febrero<br/>Balancán,Tabasco<br/>E03229',
        't' => 3,
        'w' => 30,
        'f' => 48,
        'c' => 2568583984,
        'tc' => 16733440,
        'ts' => 12,
        'min' => 1,
        'max' => 18,
        'path' => "",
        'libId' =>"",
        'oldItemId'=>642602,
           'oldZoneId'=>11,
           'p'=> array (
                           'x'=>-91.17545,
                           'y'=>17.91579,
                           'r'=>30
                    )
        );