642 times 27 equals 17,334
Ryan's Hope - 1975 1-642 was released on: USA: 27 December 1977
27
The number which lies in between 6 and 27 is 16.5 which is derived by (6+27)/2.
The element with an atomic number between 27 and 31 is cobalt, with atomic number 27.
79 - 27 = 52
The number at the midpoint of these two numbers is (15 + 27)/2 = 21
31.5
35
78
57
It is: 27