Find the longest(?) string of consecutive frugal numbers.

Def: A frugal number is a natural number that has more digits than the number of digits in its prime factorization (including exponents). For example, 128=2^7 and 29282=2*11^4

The sequence of nine numbers beginning at 10,990,312 are mostly EXTRAVAGANT numbers. Only 10990318 (factors 2 and 5495159), and the prime 10990319 are ECONOMICAL. Not stated explicitly as the first sequence, the Prime Pages imply that the first sequence of nine ECONOMICAL numbers begins at 1,034,429,177,995,381,247.