Using the haploid genome size of 3.3 billion base pairs (for humans and chimps), what is the mass of nuclear DNA in a person composed of 20 trillion

Using the haploid genome size of 3.3 billion base pairs (for humans and chimps), what is the mass of nuclear DNA in a person composed of 20 trillion cells? The answer might surprise you. (I used moles of DNA per cell and Avogrado's number to solve, but there are other ways.)