Compare 640669 vs 640672

Property	640669	640672
Type	prime	composite number
Unique factors	1	2
Total factors	1	6
Prime factorization	640669¹	2⁵ × 20021¹
Prime factorization	640669	2 × 2 × 2 × 2 × 2 × 20021
Divisors count	2	12
Divisors	1, 640669	1, 2, 4, 8, 16, 32, 20021, 40042, 80084, 160168, 320336, 640672
Number of properties	6	0
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	10011100011010011101₂	10011100011010100000₂
Base 3	1012112211111₃	1012112211121₃
Base 4	2130122131₄	2130122200₄
Base 5	131000134₅	131000142₅
Base 6	21422021₆	21422024₆
Base 7	5305561₇	5305564₇
Base 8	2343235₈	2343240₈
Base 9	1175744₉	1175747₉
Base 10	640669₁₀	640672₁₀
Base 11	3a8387₁₁	3a838a₁₁
Base 12	26a911₁₂	26a914₁₂
Base 13	1957c3₁₃	1957c6₁₃
Base 14	1296a1₁₄	1296a4₁₄
Base 15	c9c64₁₅	c9c67₁₅
Base 16	9c69d₁₆	9c6a0₁₆