Compare 11987 vs 11989

Property	11987	11989
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	11987¹	19¹ × 631¹
Prime factorization	11987	19 × 631
Divisors count	2	4
Divisors	1, 11987	1, 19, 631, 11989
Number of properties	4	1
Chen primes	736th
Isolated primes	969th
Primes	1438th
Semiprimes		3128th
Sexy primes (2nd member)	462nd
Roman numberals
Base 2	10111011010011₂	10111011010101₂
Base 3	121102222₃	121110001₃
Base 4	2323103₄	2323111₄
Base 5	340422₅	340424₅
Base 6	131255₆	131301₆
Base 7	46643₇	46645₇
Base 8	27323₈	27325₈
Base 9	17388₉	17401₉
Base 10	11987₁₀	11989₁₀
Base 11	9008₁₁	900a₁₁
Base 12	6b2b₁₂	6b31₁₂
Base 13	55c1₁₃	55c3₁₃
Base 14	4523₁₄	4525₁₄
Base 15	3842₁₅	3844₁₅
Base 16	2ed3₁₆	2ed5₁₆