Exact Definition/Format for Microdegrees for GeoPoint

[Day Davis Waterbury]

What exact format is expected the latitudeInMicroDegrees and longitudeInMicroDegrees when creating a geoPoint for a Proximity CampaignCriterion? 

For example, when I have a latitude in decimal degrees of 45.3911638 and I convert it to microdegrees as 45391163, I am seeing the following error:

[CriterionError.INVALID_LATITUDE @ operations[0].operand.criterion.geoPoint.latitudeInMicroDegrees]

Here's my code:

{

:operator => 'ADD',

:operand => {

:campaign_id => self[:campaign_id],

:criterion => {

:xsi_type => 'Proximity',

:geo_point => {

:latitude_in_micro_degrees => (shop[:lat] * 1_000_000).to_i,

:latitude_in_micro_degrees => (shop[:lng] * 1_000_000).to_i

},

:radius_distance_units => RADIUS_DISTANCE_UNITS,

:radius_in_units => radius

}

}

}