Compare 640255 vs 640259

Property	640255	640259
Type	composite number	prime
Unique factors	4	1
Total factors	4	1
Prime factorization	5¹ × 7¹ × 11¹ × 1663¹	640259¹
Prime factorization	5 × 7 × 11 × 1663	640259
Divisors count	16	2
Divisors	1, 5, 7, 11, 35, 55, 77, 385, 1663, 8315, 11641, 18293, 58205, 91465, 128051, 640255	1, 640259
Number of properties	0	4
Chen primes		20389th
Primes		52099th
Sophie germain primes		5308th
Twin primes (1st member)		5636th
Roman numberals
Base 2	10011100010011111111₂	10011100010100000011₂
Base 3	1012112021011₃	1012112021022₃
Base 4	2130103333₄	2130110003₄
Base 5	130442010₅	130442014₅
Base 6	21420051₆	21420055₆
Base 7	5304430₇	5304434₇
Base 8	2342377₈	2342403₈
Base 9	1175234₉	1175238₉
Base 10	640255₁₀	640259₁₀
Base 11	3a8040₁₁	3a8044₁₁
Base 12	26a627₁₂	26a62b₁₂
Base 13	195565₁₃	195569₁₃
Base 14	129487₁₄	12948b₁₄
Base 15	c9a8a₁₅	c9a8e₁₅
Base 16	9c4ff₁₆	9c503₁₆