Numbers in PravicTvoPravic, like most Terran languages, counts in base 10. This is probably because, as on Earth, fingers are a salient feature of counting. This idea is somewhat supported by the change of initial consonant after five. The numbers and number system are: 
English 
Pravic 
Prefix 
Zero 
Mad 
ma 
one 
Nik 
ni 
two 
Nes 
ne 
three 
Nat 
na 
four 
Nof 
no 
five 
Nuv 
nu 
six 
Vik 
vi 
seven 
Ves 
ve 
eight 
Vat 
va 
nine 
Vof 
vo 
ten 
Nimad 
nima 
twenty 
Nemad 
nema 
One hundred 
Nimamad 
nimama 
Two hundred 
Nemamad 
nemama 
One thousand 
Ninyst 
niny 
One million 
Ninynyst 
ninyny 
Six million 
Vinynyst 
vinyny 
One billion 
Nivyth 
nivy 
Three zeroes 
Nyst 

Nine zeroes 
Vyst 

1,283,511 
Ninevananuninik 
Numbers
of more than 3 digits are not
treated as prefixes 
ra (repeat, or again) is also treated as a number prefix. So twice more is rane. Other numerical prefixes include: sha (many); la (most); tha (every or all); and pa (a few). 