In the attached PBE+vdW-relaxed geometry of OE62 molecule PEKZAG (70 atoms), compute the equal-weight radius of gyration Rg = sqrt[(1/N) sum_i ||r_i - r_centroid||^2] over all N=70 atoms. Report Rg in angstrom to four decimal places.

The attachment is one complete PBE+vdW-relaxed XYZ structure, 70 atoms. Coordinates are in angstrom (1 nm = 10 angstrom). Atom rows are numbered starting at 1, immediately after the two header lines. Do not renumber or reorder atoms; use the row numbers exactly as given. This is a single relaxed molecular geometry, not a periodic cell: apply no periodic images or symmetry expansion. All atoms are equal-weighted (no mass weighting).