Compare 128987 vs 128999

Property	128987	128999
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	128987¹	13¹ × 9923¹
Prime factorization	128987	13 × 9923
Divisors count	2	4
Divisors	1, 128987	1, 13, 9923, 128999
Number of properties	10	1
Chen primes	5220th
Cousin primes (2nd member)	1500th
Happy primes	1878th
Harmonic primes	4547th
Isolated primes	9062nd
Primes	12075th
Prime triplets (3rd member)	612th
Semiprimes		29812th
Sexy primes (1st member)	2997th
Sexy primes (2nd member)	2996th
Sexy prime triplets (2nd member)	640th
Roman numberals
Base 2	11111011111011011₂	11111011111100111₂
Base 3	20112221022₃	20112221202₃
Base 4	133133123₄	133133213₄
Base 5	13111422₅	13111444₅
Base 6	2433055₆	2433115₆
Base 7	1045025₇	1045043₇
Base 8	373733₈	373747₈
Base 9	215838₉	215852₉
Base 10	128987₁₀	128999₁₀
Base 11	88a01₁₁	88a12₁₁
Base 12	6278b₁₂	6279b₁₂
Base 13	46931₁₃	46940₁₃
Base 14	35015₁₄	35023₁₄
Base 15	28342₁₅	2834e₁₅
Base 16	1f7db₁₆	1f7e7₁₆