32000000 bytes is how many gigabytes?

1073741824 http://www.whatsabyte.com/P1/byteconverter.htm

.733

8589934592 bytes equals 8 gigabytes

128849018880 bytes

For general purposes, 1000 MB are in a GB, but Memory manufactures use 1024 Mb in a GiB (a Gigabinary Byte)