Compare 640657 vs 640669

Property	640657	640669
Type	composite number	prime
Unique factors	3	1
Total factors	3	1
Prime factorization	43¹ × 47¹ × 317¹	640669¹
Prime factorization	43 × 47 × 317	640669
Divisors count	8	2
Divisors	1, 43, 47, 317, 2021, 13631, 14899, 640657	1, 640669
Number of properties	0	6
Additive primes		20372nd
Chen primes		20396th
Primes		52126th
Prime triplets (3rd member)		2063rd
Sexy primes (2nd member)		11293rd
Twin primes (2nd member)		5638th
Roman numberals
Base 2	10011100011010010001₂	10011100011010011101₂
Base 3	1012112211001₃	1012112211111₃
Base 4	2130122101₄	2130122131₄
Base 5	131000112₅	131000134₅
Base 6	21422001₆	21422021₆
Base 7	5305543₇	5305561₇
Base 8	2343221₈	2343235₈
Base 9	1175731₉	1175744₉
Base 10	640657₁₀	640669₁₀
Base 11	3a8376₁₁	3a8387₁₁
Base 12	26a901₁₂	26a911₁₂
Base 13	1957b4₁₃	1957c3₁₃
Base 14	129693₁₄	1296a1₁₄
Base 15	c9c57₁₅	c9c64₁₅
Base 16	9c691₁₆	9c69d₁₆