Compare 649 vs 660

Property	649	660
Type	semiprime	composite number
Unique factors	2	4
Total factors	2	5
Prime factorization	11¹ × 59¹	2² × 3¹ × 5¹ × 11¹
Prime factorization	11 × 59	2 × 2 × 3 × 5 × 11
Divisors count	4	24
Divisors	1, 11, 59, 649	1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
Number of properties	1	0
Semiprimes	196th
Roman numberals	DCXLIX	DCLX
Base 2	1010001001₂	1010010100₂
Base 3	220001₃	220110₃
Base 4	22021₄	22110₄
Base 5	10044₅	10120₅
Base 6	3001₆	3020₆
Base 7	1615₇	1632₇
Base 8	1211₈	1224₈
Base 9	801₉	813₉
Base 10	649₁₀	660₁₀
Base 11	540₁₁	550₁₁
Base 12	461₁₂	470₁₂
Base 13	3ac₁₃	3ba₁₃
Base 14	345₁₄	352₁₄
Base 15	2d4₁₅	2e0₁₅
Base 16	289₁₆	294₁₆