Compare 640250 vs 640259

Property	640250	640259
Type	composite number	prime
Unique factors	4	1
Total factors	6	1
Prime factorization	2¹ × 5³ × 13¹ × 197¹	640259¹
Prime factorization	2 × 5 × 5 × 5 × 13 × 197	640259
Divisors count	32	2
Divisors	1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 197, 250, 325, 394, 650, 985, 1625, 1970, 2561, 3250, 4925, 5122, 9850, 12805, 24625, 25610, 49250, 64025, 128050, 320125, 640250	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	10011100010011111010₂	10011100010100000011₂
Base 3	1012112020222₃	1012112021022₃
Base 4	2130103322₄	2130110003₄
Base 5	130442000₅	130442014₅
Base 6	21420042₆	21420055₆
Base 7	5304422₇	5304434₇
Base 8	2342372₈	2342403₈
Base 9	1175228₉	1175238₉
Base 10	640250₁₀	640259₁₀
Base 11	3a8036₁₁	3a8044₁₁
Base 12	26a622₁₂	26a62b₁₂
Base 13	195560₁₃	195569₁₃
Base 14	129482₁₄	12948b₁₄
Base 15	c9a85₁₅	c9a8e₁₅
Base 16	9c4fa₁₆	9c503₁₆