Compare 639979 vs 639991

Property	639979	639991
Type	semiprime	composite number
Unique factors	2	3
Total factors	2	3
Prime factorization	79¹ × 8101¹	11¹ × 73¹ × 797¹
Prime factorization	79 × 8101	11 × 73 × 797
Divisors count	4	8
Divisors	1, 79, 8101, 639979	1, 11, 73, 797, 803, 8767, 58181, 639991
Number of properties	1	0
Semiprimes	137142nd
Roman numberals
Base 2	10011100001111101011₂	10011100001111110111₂
Base 3	1012111212221₃	1012111220101₃
Base 4	2130033223₄	2130033313₄
Base 5	130434404₅	130434431₅
Base 6	21414511₆	21414531₆
Base 7	5303554₇	5303602₇
Base 8	2341753₈	2341767₈
Base 9	1174787₉	1174811₉
Base 10	639979₁₀	639991₁₀
Base 11	3a790a₁₁	3a7920₁₁
Base 12	26a437₁₂	26a447₁₂
Base 13	1953b2₁₃	1953c1₁₃
Base 14	12932b₁₄	129339₁₄
Base 15	c9954₁₅	c9961₁₅
Base 16	9c3eb₁₆	9c3f7₁₆