Compare 639979 vs 640047

Property	639979	640047
Type	semiprime	semiprime
Unique factors	2	2
Total factors	2	2
Prime factorization	79¹ × 8101¹	3¹ × 213349¹
Prime factorization	79 × 8101	3 × 213349
Divisors count	4	4
Divisors	1, 79, 8101, 639979	1, 3, 213349, 640047
Number of properties	1	1
Semiprimes	137142nd	137153rd
Roman numberals
Base 2	10011100001111101011₂	10011100010000101111₂
Base 3	1012111212221₃	1012111222110₃
Base 4	2130033223₄	2130100233₄
Base 5	130434404₅	130440142₅
Base 6	21414511₆	21415103₆
Base 7	5303554₇	5304012₇
Base 8	2341753₈	2342057₈
Base 9	1174787₉	1174873₉
Base 10	639979₁₀	640047₁₀
Base 11	3a790a₁₁	3a7971₁₁
Base 12	26a437₁₂	26a493₁₂
Base 13	1953b2₁₃	195435₁₃
Base 14	12932b₁₄	129379₁₄
Base 15	c9954₁₅	c999c₁₅
Base 16	9c3eb₁₆	9c42f₁₆