Compare 661990 vs 661998

Property	661990	661998
Type	composite number	composite number
Unique factors	4	4
Total factors	6	4
Prime factorization	2¹ × 5¹ × 7³ × 193¹	2¹ × 3¹ × 19¹ × 5807¹
Prime factorization	2 × 5 × 7 × 7 × 7 × 193	2 × 3 × 19 × 5807
Divisors count	32	16
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, 2, 3, 6, 19, 38, 57, 114, 5807, 11614, 17421, 34842, 110333, 220666, 330999, 661998
Number of properties	0	0
Roman numberals
Base 2	10100001100111100110₂	10100001100111101110₂
Base 3	1020122002011₃	1020122002110₃
Base 4	2201213212₄	2201213232₄
Base 5	132140430₅	132140443₅
Base 6	22104434₆	22104450₆
Base 7	5425000₇	5425011₇
Base 8	2414746₈	2414756₈
Base 9	1218064₉	1218073₉
Base 10	661990₁₀	661998₁₀
Base 11	4123aa₁₁	412407₁₁
Base 12	27b11a₁₂	27b126₁₂
Base 13	1a2414₁₃	1a241c₁₃
Base 14	133370₁₄	133378₁₄
Base 15	d122a₁₅	d1233₁₅
Base 16	a19e6₁₆	a19ee₁₆