IP address 16.12.1.51
IP address: 16.12.1.51
Address type: IPv4
Host or reverse DNS (rDNS): s3-website-sa-east-1.amazonaws.com
Country: 
Brazil
16.12.1.51 does NOT belong to a private IP address block.
16.12.1.51 does NOT belong to a reserved IP address block.
There are different formats or notations how the IP address 16.12.1.51 can be represented.
Dotted decimal: 16.12.1.51
Hexadecimal: 0x100C0133
Dotted hex: 0x10.0x0C.0x01.0x33
Decimal: 269222195
Octal: 0020.0014.0001.0063
Binary: 00010000.00001100.00000001.00110011