16900。 The daily interest rate of micro-loan is between 0.03% and 0.05%, and the interest is calculated according to the actual loan days, and the principal is repaid in equal amount. 13000* interest rate 0.0005=6.5 (this is daily interest), 6.5 yuan *30 days = 195 yuan (this is monthly interest), 195 yuan *20 periods =3900 yuan (this is total interest),1. 16900/20 installments =845 yuan (the amount to be repaid in one month is repaid in 20 installments), and the small loan 13000 yuan is repaid in 20 installments, and each installment is repaid in 16900 yuan. "Micro-loan" is a pure online micro-credit revolving loan banking product launched by Weizhong Bank, the first digital bank in China, for WeChat users and mobile QQ users. Committed to providing convenient and efficient personal consumption credit services for the general public.