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:
“Mathematics alone make us feel the limits of our intelligence. For we can always suppose in the case of an experiment that it is inexplicable because we don’t happen to have all the data. In mathematics we have all the data ... and yet we don’t understand. We always come back to the contemplation of our human wretchedness. What force is in relation to our will, the impenetrable opacity of mathematics is in relation to our intelligence.”
—Simone Weil (1909–1943)
“In mathematics he was greater
Than Tycho Brahe, or Erra Pater:
For he, by geometric scale,
Could take the size of pots of ale;
Resolve, by sines and tangents straight,
If bread and butter wanted weight;
And wisely tell what hour o’ th’ day
The clock doth strike, by algebra.”
—Samuel Butler (1612–1680)