In Mathematics
74 is the twenty-first distinct semiprime and the eleventh of the form 2×q. The aliquot sum of 74 is 40 within the aliquot sequence (74,40,43,1,0), 74 being the sixth composite number in the 43-aliquot tree.
74 is a nontotient. There are 74 different non-Hamiltonian polyhedra with a minimum number of vertices.
Read more about this topic: 74 (number)
Famous quotes containing the word mathematics:
“The three main medieval points of view regarding universals are designated by historians as realism, conceptualism, and nominalism. Essentially these same three doctrines reappear in twentieth-century surveys of the philosophy of mathematics under the new names logicism, intuitionism, and formalism.”
—Willard Van Orman Quine (b. 1908)