Compare 639143 vs 640259

Property	639143	640259
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639143¹	640259¹
Prime factorization	639143	640259
Divisors count	2	2
Divisors	1, 639143	1, 640259
Number of properties	4	4
Chen primes		20389th
Isolated primes	40764th
Primes	52011th	52099th
Sexy primes (2nd member)	11270th
Sophie germain primes	5297th	5308th
Twin primes (1st member)		5636th
Roman numberals
Base 2	10011100000010100111₂	10011100010100000011₂
Base 3	1012110201222₃	1012112021022₃
Base 4	2130002213₄	2130110003₄
Base 5	130423033₅	130442014₅
Base 6	21410555₆	21420055₆
Base 7	5301251₇	5304434₇
Base 8	2340247₈	2342403₈
Base 9	1173658₉	1175238₉
Base 10	639143₁₀	640259₁₀
Base 11	3a721a₁₁	3a8044₁₁
Base 12	269a5b₁₂	26a62b₁₂
Base 13	194bbb₁₃	195569₁₃
Base 14	128cd1₁₄	12948b₁₄
Base 15	c9598₁₅	c9a8e₁₅
Base 16	9c0a7₁₆	9c503₁₆