Compare 989987 vs 989999

Property	989987	989999
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	53¹ × 18679¹	989999¹
Prime factorization	53 × 18679	989999
Divisors count	4	2
Divisors	1, 53, 18679, 989987	1, 989999
Number of properties	1	4
Additive primes		29854th
Chen primes		29704th
Primes		77777th
Semiprimes	208028th
Twin primes (1st member)		8102nd
Roman numberals
Base 2	11110001101100100011₂	11110001101100101111₂
Base 3	1212022000012₃	1212022000122₃
Base 4	3301230203₄	3301230233₄
Base 5	223134422₅	223134444₅
Base 6	33115135₆	33115155₆
Base 7	11262155₇	11262203₇
Base 8	3615443₈	3615457₈
Base 9	1768005₉	1768018₉
Base 10	989987₁₀	989999₁₀
Base 11	616879₁₁	61688a₁₁
Base 12	3b8aab₁₂	3b8abb₁₂
Base 13	2887bb₁₃	2887ca₁₃
Base 14	1baad5₁₄	1bab03₁₄
Base 15	1484e2₁₅	1484ee₁₅
Base 16	f1b23₁₆	f1b2f₁₆