Compare 645638 vs 645649

Property	645638	645649
Type	composite number	prime
Unique factors	4	1
Total factors	4	1
Prime factorization	2¹ × 7¹ × 107¹ × 431¹	645649¹
Prime factorization	2 × 7 × 107 × 431	645649
Divisors count	16	2
Divisors	1, 2, 7, 14, 107, 214, 431, 749, 862, 1498, 3017, 6034, 46117, 92234, 322819, 645638	1, 645649
Number of properties	0	3
Primes		52496th
Twin primes (2nd member)		5675th
Ulam primes		3851st
Roman numberals
Base 2	10011101101000000110₂	10011101101000010001₂
Base 3	1012210122112₃	1012210122221₃
Base 4	2131220012₄	2131220101₄
Base 5	131130023₅	131130044₅
Base 6	21501022₆	21501041₆
Base 7	5326220₇	5326234₇
Base 8	2355006₈	2355021₈
Base 9	1183575₉	1183587₉
Base 10	645638₁₀	645649₁₀
Base 11	401094₁₁	4010a4₁₁
Base 12	271772₁₂	271781₁₂
Base 13	197b46₁₃	197b54₁₃
Base 14	12b410₁₄	12b41b₁₄
Base 15	cb478₁₅	cb484₁₅
Base 16	9da06₁₆	9da11₁₆