Oh, i wasn't very clear there... It's not a mathematical equivalent, but a linguistic. I can't speak for other languages due to lack of experience, but many european languages share the same root for powers of [base].
Germanic languages:
Hundert, Tausand.
Hundred, Thousand.
Hundra, tusen.
The word for hundred is another in finnish (and presumably other finnic languages):
Sata, Tuhat
Sata is also shared with the slavic group, like in polish:
Sto, Tysiąc (c is pronounced ts)
So, all in all, these words represent different powers without litteraly spelling out ten times ten, or ten times ten times ten, specifically. Or if they did, it's very much lost in history.
That, unlike ten (-teen, -ty) makes them perfect for fusion with other bases than ten. That was my basis for the proposal hexdred, hexand (which can be translated to just about any of these groups at least without hassle). Hex is short for hexadecade, the suffix lets you know what power of the hexadecade.
Rephrased: Hexdred is short form for hexadecade-dred: 16x16. -dred is assumed to mean "times [base]" no matter what the base is.
Perhaps more importantly, it doesn't take more time (at least in germanic languages) to say hexdred - or shorter. Two hundred has the same speaking rythm as Two hexdred. Compare with Två hexdra. Zwei hexert. It's the same, which makes it easy and natural to use.
Some other languages are a little worse off, rythm-wise: Hexsto (or perhaps heksto since x is not natively used in polish and represents a "cha" sound in other related languages, including russian), hexata. Native speakers are free to object my attempts to synthesize new words.
Generally, i believe it's better to add a syllable than subtract one to the power denominator, because many languages mostly have one-syllable words for their numerals and two-syllable words for their denominators, or a syllable with a more or less articulate difton (nine, neun, nio). So that's good for distinguishing power denominators fron numerals, but i don't know how that would sound in a two-or-more-syllable numeral system, like finnish where one is yksi and seven is seitsemän, for example.