Compare 661990 vs 661991

Property	661990	661991
Type	composite number	composite number
Unique factors	4	2
Total factors	6	3
Prime factorization	2¹ × 5¹ × 7³ × 193¹	11² × 5471¹
Prime factorization	2 × 5 × 7 × 7 × 7 × 193	11 × 11 × 5471
Divisors count	32	6
Divisors	1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 193, 245, 343, 386, 490, 686, 965, 1351, 1715, 1930, 2702, 3430, 6755, 9457, 13510, 18914, 47285, 66199, 94570, 132398, 330995, 661990	1, 11, 121, 5471, 60181, 661991
Number of properties	0	0
Roman numberals
Base 2	10100001100111100110₂	10100001100111100111₂
Base 3	1020122002011₃	1020122002012₃
Base 4	2201213212₄	2201213213₄
Base 5	132140430₅	132140431₅
Base 6	22104434₆	22104435₆
Base 7	5425000₇	5425001₇
Base 8	2414746₈	2414747₈
Base 9	1218064₉	1218065₉
Base 10	661990₁₀	661991₁₀
Base 11	4123aa₁₁	412400₁₁
Base 12	27b11a₁₂	27b11b₁₂
Base 13	1a2414₁₃	1a2415₁₃
Base 14	133370₁₄	133371₁₄
Base 15	d122a₁₅	d122b₁₅
Base 16	a19e6₁₆	a19e7₁₆