5
No. There are ~37.57 of them.
There are 3168 such numbers. 2673 have one 7 459 have two 7s 35 have three and 1 has all four 7s. Numbers with leading 0s are excluded.
5.28751 7s equals 37.
There is one 7s orbital with two sub-orbitals: 7s(+1/2) and 7s(-1/2) . A picture of this 7s orbital is in 'Related links'
Two electrons (each with opposite spins) in the '7s orbital'
5x7=35, then 3-1=2, so 35+2=37
8
80.
18
14
10