Compare 660661 vs 660673

Property	660661	660673
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	660661¹	13¹ × 50821¹
Prime factorization	660661	13 × 50821
Divisors count	2	4
Divisors	1, 660661	1, 13, 50821, 660673
Number of properties	3	1
Centered decagonal primes	153rd
Primes	53621st
Semiprimes		141376th
Twin primes (2nd member)	5785th
Roman numberals
Base 2	10100001010010110101₂	10100001010011000001₂
Base 3	1020120020221₃	1020120021101₃
Base 4	2201102311₄	2201103001₄
Base 5	132120121₅	132120143₅
Base 6	22054341₆	22054401₆
Base 7	5421061₇	5421106₇
Base 8	2412265₈	2412301₈
Base 9	1216227₉	1216241₉
Base 10	660661₁₀	660673₁₀
Base 11	411401₁₁	411412₁₁
Base 12	27a3b1₁₂	27a401₁₂
Base 13	1a1931₁₃	1a1940₁₃
Base 14	132aa1₁₄	132aad₁₄
Base 15	d0b41₁₅	d0b4d₁₅
Base 16	a14b5₁₆	a14c1₁₆