IPv4 Question

I was testing connectivity on a machine after moving it to a new ESXi host and one of the tests I was pinging 192.168.0.30.

But I mistyped it as 192.168.0.030 and what it did surprised me a little, I figured it would have still sent the ping to 192.168.0.30, but instead it attempted to ping 192.168.0.24.

Is there something I don't understand here? Or an issue I need to look into?

EDIT: When I ping 192.168.0.30 it pings that address just fine.