Science-related numbers

92 (ninety-two) is the  of, the heaviest.

128 (one hundred twenty-eight) is the number of s in, the heaviest known gas under.

The reciprocal of the is approximately equal to 137.

The isotope -238 is the heaviest.

The isotope -257 is the heaviest nuclide that can be formed by from naturally occuring elements.

The number 257 is also a \(2^{2^3}+1\).

is the heaviest known gas under. Using the heaviest s of its, its will be approximately equal to  + 6 ×  = 300.