Compare 640250 vs 640261

Property	640250	640261
Type	composite number	prime
Unique factors	4	1
Total factors	6	1
Prime factorization	2¹ × 5³ × 13¹ × 197¹	640261¹
Prime factorization	2 × 5 × 5 × 5 × 13 × 197	640261
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, 640261
Number of properties	0	5
Additive primes		20363rd
Lucky primes		5980th
Primes		52100th
Sexy primes (1st member)		11288th
Twin primes (2nd member)		5636th
Roman numberals
Base 2	10011100010011111010₂	10011100010100000101₂
Base 3	1012112020222₃	1012112021101₃
Base 4	2130103322₄	2130110011₄
Base 5	130442000₅	130442021₅
Base 6	21420042₆	21420101₆
Base 7	5304422₇	5304436₇
Base 8	2342372₈	2342405₈
Base 9	1175228₉	1175241₉
Base 10	640250₁₀	640261₁₀
Base 11	3a8036₁₁	3a8046₁₁
Base 12	26a622₁₂	26a631₁₂
Base 13	195560₁₃	19556b₁₃
Base 14	129482₁₄	12948d₁₄
Base 15	c9a85₁₅	c9a91₁₅
Base 16	9c4fa₁₆	9c505₁₆