Compare 645640 vs 645647

Property	645640	645647
Type	composite number	prime
Unique factors	3	1
Total factors	5	1
Prime factorization	2³ × 5¹ × 16141¹	645647¹
Prime factorization	2 × 2 × 2 × 5 × 16141	645647
Divisors count	16	2
Divisors	1, 2, 4, 5, 8, 10, 20, 40, 16141, 32282, 64564, 80705, 129128, 161410, 322820, 645640	1, 645647
Number of properties	0	4
Chen primes		20536th
Primes		52495th
Sexy primes (2nd member)		11370th
Twin primes (1st member)		5675th
Roman numberals
Base 2	10011101101000001000₂	10011101101000001111₂
Base 3	1012210122121₃	1012210122212₃
Base 4	2131220020₄	2131220033₄
Base 5	131130030₅	131130042₅
Base 6	21501024₆	21501035₆
Base 7	5326222₇	5326232₇
Base 8	2355010₈	2355017₈
Base 9	1183577₉	1183585₉
Base 10	645640₁₀	645647₁₀
Base 11	401096₁₁	4010a2₁₁
Base 12	271774₁₂	27177b₁₂
Base 13	197b48₁₃	197b52₁₃
Base 14	12b412₁₄	12b419₁₄
Base 15	cb47a₁₅	cb482₁₅
Base 16	9da08₁₆	9da0f₁₆