Compare 121981 vs 121991

Property	121981	121991
Type	semiprime	semiprime
Unique factors	2	2
Total factors	2	2
Prime factorization	223¹ × 547¹	43¹ × 2837¹
Prime factorization	223 × 547	43 × 2837
Divisors count	4	4
Divisors	1, 223, 547, 121981	1, 43, 2837, 121991
Number of properties	1	1
Semiprimes	28269th	28271st
Roman numberals
Base 2	11101110001111101₂	11101110010000111₂
Base 3	20012022211₃	20012100012₃
Base 4	131301331₄	131302013₄
Base 5	12400411₅	12400431₅
Base 6	2340421₆	2340435₆
Base 7	1015426₇	1015442₇
Base 8	356175₈	356207₈
Base 9	205284₉	205305₉
Base 10	121981₁₀	121991₁₀
Base 11	83712₁₁	83721₁₁
Base 12	5a711₁₂	5a71b₁₂
Base 13	436a2₁₃	436ac₁₃
Base 14	3264d₁₄	32659₁₄
Base 15	26221₁₅	2622b₁₅
Base 16	1dc7d₁₆	1dc87₁₆