Isso pode ser O Homem Triúno por Richard A. Lupoff (1976). Em p. 55 no google books , há uma referência a "trits" como o equivalente a "bits" em um sistema básico triskadecimal:
"My memory is hierarchic," the response came after a pause. "Prime storage access time is point-oh-oh-one picosecond. Prime capacity thirteen trillion trits—"
"Hold it!" Auburn interrupted. "Trits? What are trits?"
"Triskidecimal storage units, each subject to values ranging from zero through twelve."
Auburn actually laughed. Thirteen-base numbering! What kind of strange creatures had designed that system! But if it worked, it worked.
Como descrito na resenha de Kirkus aqui , o enredo parece envolver um personagem com "vários eus", que soa como se pudesse corresponder à sua descrição de uma pessoa sendo "duplicada":
Split-identity story of a gentle middle-aged cartoonist, creator of intrepid Diamond Sutro, unaccountably locked in the same body as an American Nazi leader. There's a third self unknown to the others, and a still more buried remnant awaiting its own moment. The action spins between a posh Earthside funny farm, a robot supercivilization to which the multiple selves are summoned to save the universe, and the Diamond Sutro cartoon plot's increasing encroachments on outside realities--with additional disturbing (and not awfully well-managed) WW II flashbacks. The denouement is brought off with confidence though in several shades of purple. A superior and stimulating effort.