def is_valid_minutes(minutes):
    """
    Validates number of minutes.

    :type minutes: int
    :param minutes: number of minutes to be validated.

    :rtype: bool
    :return: number of seconds in the amount of minutes
    """
    SECONDS_IN_A_MINUTE = 60
    MINUTES_IN_TEN_YEARS = 5256000

    minutes = int(minutes)

    if minutes < 1 or minutes > MINUTES_IN_TEN_YEARS:
        return 0

    return minutes*SECONDS_IN_A_MINUTE