Compare 661980 vs 661991

Property	661980	661991
Type	composite number	composite number
Unique factors	6	2
Total factors	7	3
Prime factorization	2² × 3¹ × 5¹ × 11¹ × 17¹ × 59¹	11² × 5471¹
Prime factorization	2 × 2 × 3 × 5 × 11 × 17 × 59	11 × 11 × 5471
Divisors count	96	6
Divisors	1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 59, 60, 66, 68, 85, 102, 110, 118, 132, 165, 170, 177, 187, 204, 220, 236, 255, 295, 330, 340, 354, 374, 510, 561, 590, 649, 660, 708, 748, 885, 935, 1003, 1020, 1122, 1180, 1298, 1770, 1870, 1947, 2006, 2244, 2596, 2805, 3009, 3245, 3540, 3740, 3894, 4012, 5015, 5610, 6018, 6490, 7788, 9735, 10030, 11033, 11220, 12036, 12980, 15045, 19470, 20060, 22066, 30090, 33099, 38940, 44132, 55165, 60180, 66198, 110330, 132396, 165495, 220660, 330990, 661980	1, 11, 121, 5471, 60181, 661991
Number of properties	0	0
Roman numberals
Base 2	10100001100111011100₂	10100001100111100111₂
Base 3	1020122001210₃	1020122002012₃
Base 4	2201213130₄	2201213213₄
Base 5	132140410₅	132140431₅
Base 6	22104420₆	22104435₆
Base 7	5424654₇	5425001₇
Base 8	2414734₈	2414747₈
Base 9	1218053₉	1218065₉
Base 10	661980₁₀	661991₁₀
Base 11	4123a0₁₁	412400₁₁
Base 12	27b110₁₂	27b11b₁₂
Base 13	1a2407₁₃	1a2415₁₃
Base 14	133364₁₄	133371₁₄
Base 15	d1220₁₅	d122b₁₅
Base 16	a19dc₁₆	a19e7₁₆