Can anyone tell me that can I use binary numbers in verilog A .e.g can i assign( integer i=0100);

if no wat is the way to use binary numbers in verilog A?

integer iflag, i, j, a, d;
integer x, h;

real test;

analog begin
  @(initial_step) begin
     iflag = 0;
     d = 1;
     x = 0;
     for(i=0; i<=REGISTER_LENGTH;i=i+1) begin
        x = x + (1 << i);
     end

     if(REGISTER_LENGTH == 15)
        h = (1 << 0) + (1 << 14) + (1 << 15);
     else
        h = (1 << 0) + (1 << 5) + (1 << 9);
  end // initial_step

  @(timer(Clock_Period/10, Clock_Period)) begin
     if(iflag > 0) begin
        a = x & h;

        j = 0;
        for(i=1; i<=REGISTER_LENGTH;i=i+1) begin
           j = j ^ ((a >> i) & 1);
        end
        x = x & (~1);
        x = x ^ j;

        x = x << 1;
     end
     iflag = 1;
  end // timer