Compare 661988 vs 661991

Property	661988	661991
Type	composite number	composite number
Unique factors	3	2
Total factors	4	3
Prime factorization	2² × 167¹ × 991¹	11² × 5471¹
Prime factorization	2 × 2 × 167 × 991	11 × 11 × 5471
Divisors count	12	6
Divisors	1, 2, 4, 167, 334, 668, 991, 1982, 3964, 165497, 330994, 661988	1, 11, 121, 5471, 60181, 661991
Number of properties	0	0
Roman numberals
Base 2	10100001100111100100₂	10100001100111100111₂
Base 3	1020122002002₃	1020122002012₃
Base 4	2201213210₄	2201213213₄
Base 5	132140423₅	132140431₅
Base 6	22104432₆	22104435₆
Base 7	5424665₇	5425001₇
Base 8	2414744₈	2414747₈
Base 9	1218062₉	1218065₉
Base 10	661988₁₀	661991₁₀
Base 11	4123a8₁₁	412400₁₁
Base 12	27b118₁₂	27b11b₁₂
Base 13	1a2412₁₃	1a2415₁₃
Base 14	13336c₁₄	133371₁₄
Base 15	d1228₁₅	d122b₁₅
Base 16	a19e4₁₆	a19e7₁₆