Compare 640260 vs 640261

Property	640260	640261
Type	composite number	prime
Unique factors	4	1
Total factors	6	1
Prime factorization	2² × 3² × 5¹ × 3557¹	640261¹
Prime factorization	2 × 2 × 3 × 3 × 5 × 3557	640261
Divisors count	36	2
Divisors	1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 3557, 7114, 10671, 14228, 17785, 21342, 32013, 35570, 42684, 53355, 64026, 71140, 106710, 128052, 160065, 213420, 320130, 640260	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	10011100010100000100₂	10011100010100000101₂
Base 3	1012112021100₃	1012112021101₃
Base 4	2130110010₄	2130110011₄
Base 5	130442020₅	130442021₅
Base 6	21420100₆	21420101₆
Base 7	5304435₇	5304436₇
Base 8	2342404₈	2342405₈
Base 9	1175240₉	1175241₉
Base 10	640260₁₀	640261₁₀
Base 11	3a8045₁₁	3a8046₁₁
Base 12	26a630₁₂	26a631₁₂
Base 13	19556a₁₃	19556b₁₃
Base 14	12948c₁₄	12948d₁₄
Base 15	c9a90₁₅	c9a91₁₅
Base 16	9c504₁₆	9c505₁₆