Compare 1381 vs 1390

Property	1381	1390
Type	prime	composite number
Unique factors	1	3
Total factors	1	3
Prime factorization	1381¹	2¹ × 5¹ × 139¹
Prime factorization	1381	2 × 5 × 139
Divisors count	2	8
Divisors	1, 1381	1, 2, 5, 10, 139, 278, 695, 1390
Number of properties	7	0
Additive primes	122nd
Chen primes	144th
Emirps	64th
Isolated primes	130th
Long primes	86th
Primes	221st
Pythagorean primes	109th
Roman numberals	MCCCLXXXI	MCCCXC
Base 2	10101100101₂	10101101110₂
Base 3	1220011₃	1220111₃
Base 4	111211₄	111232₄
Base 5	21011₅	21030₅
Base 6	10221₆	10234₆
Base 7	4012₇	4024₇
Base 8	2545₈	2556₈
Base 9	1804₉	1814₉
Base 10	1381₁₀	1390₁₀
Base 11	1046₁₁	1054₁₁
Base 12	971₁₂	97a₁₂
Base 13	823₁₃	82c₁₃
Base 14	709₁₄	714₁₄
Base 15	621₁₅	62a₁₅
Base 16	565₁₆	56e₁₆