QByteArray appending quint32 not working

[TheNewGuy]

I have the following code:

quint32 num = 17;
 
	QByteArray ba;
	ba.append(num);
 
	qDebug() << "BA Size: " << ba.size();

quint32 num = 17;

	QByteArray ba;
	ba.append(num);

	qDebug() << "BA Size: " << ba.size();

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I expect the output to be 4, since the a quint32 is comprised of 4 bytes. However, the output is 1 byte.

So, my question is, how do I append a quint32 number?