Compare 663977 vs 663989

Property	663977	663989
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	663977¹	31¹ × 21419¹
Prime factorization	663977	31 × 21419
Divisors count	2	4
Divisors	1, 663977	1, 31, 21419, 663989
Number of properties	7	1
Chen primes	21067th
Cousin primes (2nd member)	5808th
Primes	53864th
Prime triplets (1st member)	2118th
Prime triplets (2nd member)	2117th
Semiprimes		142065th
Sexy primes (1st member)	11628th
Twin primes (1st member)	5816th
Roman numberals
Base 2	10100010000110101001₂	10100010000110110101₂
Base 3	1020201210202₃	1020201211012₃
Base 4	2202012221₄	2202012311₄
Base 5	132221402₅	132221424₅
Base 6	22121545₆	22122005₆
Base 7	5433536₇	5433554₇
Base 8	2420651₈	2420665₈
Base 9	1221722₉	1221735₉
Base 10	663977₁₀	663989₁₀
Base 11	413946₁₁	413957₁₁
Base 12	2802b5₁₂	280305₁₂
Base 13	1a32b2₁₃	1a32c1₁₃
Base 14	133d8d₁₄	133d9b₁₄
Base 15	d1b02₁₅	d1b0e₁₅
Base 16	a21a9₁₆	a21b5₁₆