Compare 3981 vs 3991

Property	3981	3991
Type	semiprime	semiprime
Unique factors	2	2
Total factors	2	2
Prime factorization	3¹ × 1327¹	13¹ × 307¹
Prime factorization	3 × 1327	13 × 307
Divisors count	4	4
Divisors	1, 3, 1327, 3981	1, 13, 307, 3991
Number of properties	1	1
Semiprimes	1098th	1102nd
Roman numberals	MMMCMLXXXI	MMMCMXCI
Base 2	111110001101₂	111110010111₂
Base 3	12110110₃	12110211₃
Base 4	332031₄	332113₄
Base 5	111411₅	111431₅
Base 6	30233₆	30251₆
Base 7	14415₇	14431₇
Base 8	7615₈	7627₈
Base 9	5413₉	5424₉
Base 10	3981₁₀	3991₁₀
Base 11	2a9a₁₁	2aa9₁₁
Base 12	2379₁₂	2387₁₂
Base 13	1a73₁₃	1a80₁₃
Base 14	1645₁₄	1651₁₄
Base 15	12a6₁₅	12b1₁₅
Base 16	f8d₁₆	f97₁₆