Compare 1381 vs 1391

Property	1381	1391
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	1381¹	13¹ × 107¹
Prime factorization	1381	13 × 107
Divisors count	2	4
Divisors	1, 1381	1, 13, 107, 1391
Number of properties	7	1
Additive primes	122nd
Chen primes	144th
Emirps	64th
Isolated primes	130th
Long primes	86th
Primes	221st
Pythagorean primes	109th
Semiprimes		412th
Roman numberals	MCCCLXXXI	MCCCXCI
Base 2	10101100101₂	10101101111₂
Base 3	1220011₃	1220112₃
Base 4	111211₄	111233₄
Base 5	21011₅	21031₅
Base 6	10221₆	10235₆
Base 7	4012₇	4025₇
Base 8	2545₈	2557₈
Base 9	1804₉	1815₉
Base 10	1381₁₀	1391₁₀
Base 11	1046₁₁	1055₁₁
Base 12	971₁₂	97b₁₂
Base 13	823₁₃	830₁₃
Base 14	709₁₄	715₁₄
Base 15	621₁₅	62b₁₅
Base 16	565₁₆	56f₁₆