Compare 638681 vs 638689

Property	638681	638689
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	229¹ × 2789¹	638689¹
Prime factorization	229 × 2789	638689
Divisors count	4	2
Divisors	1, 229, 2789, 638681	1, 638689
Number of properties	1	3
Chen primes		20341st
Isolated primes		40740th
Primes		51985th
Semiprimes	136851st
Roman numberals
Base 2	10011011111011011001₂	10011011111011100001₂
Base 3	1012110002212₃	1012110010011₃
Base 4	2123323121₄	2123323201₄
Base 5	130414211₅	130414224₅
Base 6	21404505₆	21404521₆
Base 7	5300021₇	5300032₇
Base 8	2337331₈	2337341₈
Base 9	1173085₉	1173104₉
Base 10	638681₁₀	638689₁₀
Base 11	3a693a₁₁	3a6947₁₁
Base 12	269735₁₂	269741₁₂
Base 13	194924₁₃	19492c₁₃
Base 14	128a81₁₄	128a89₁₄
Base 15	c938b₁₅	c9394₁₅
Base 16	9bed9₁₆	9bee1₁₆