Compare 645644 vs 645649

Property	645644	645649
Type	composite number	prime
Unique factors	2	1
Total factors	3	1
Prime factorization	2² × 161411¹	645649¹
Prime factorization	2 × 2 × 161411	645649
Divisors count	6	2
Divisors	1, 2, 4, 161411, 322822, 645644	1, 645649
Number of properties	0	3
Primes		52496th
Twin primes (2nd member)		5675th
Ulam primes		3851st
Roman numberals
Base 2	10011101101000001100₂	10011101101000010001₂
Base 3	1012210122202₃	1012210122221₃
Base 4	2131220030₄	2131220101₄
Base 5	131130034₅	131130044₅
Base 6	21501032₆	21501041₆
Base 7	5326226₇	5326234₇
Base 8	2355014₈	2355021₈
Base 9	1183582₉	1183587₉
Base 10	645644₁₀	645649₁₀
Base 11	40109a₁₁	4010a4₁₁
Base 12	271778₁₂	271781₁₂
Base 13	197b4c₁₃	197b54₁₃
Base 14	12b416₁₄	12b41b₁₄
Base 15	cb47e₁₅	cb484₁₅
Base 16	9da0c₁₆	9da11₁₆