Compare 663983 vs 663989

Property	663983	663989
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	663983¹	31¹ × 21419¹
Prime factorization	663983	31 × 21419
Divisors count	2	4
Divisors	1, 663983	1, 31, 21419, 663989
Number of properties	5	1
Cousin primes (2nd member)	5809th
Isolated primes	42235th
Primes	53866th
Prime triplets (3rd member)	2118th
Semiprimes		142065th
Sexy primes (2nd member)	11628th
Roman numberals
Base 2	10100010000110101111₂	10100010000110110101₂
Base 3	1020201210222₃	1020201211012₃
Base 4	2202012233₄	2202012311₄
Base 5	132221413₅	132221424₅
Base 6	22121555₆	22122005₆
Base 7	5433545₇	5433554₇
Base 8	2420657₈	2420665₈
Base 9	1221728₉	1221735₉
Base 10	663983₁₀	663989₁₀
Base 11	413951₁₁	413957₁₁
Base 12	2802bb₁₂	280305₁₂
Base 13	1a32b8₁₃	1a32c1₁₃
Base 14	133d95₁₄	133d9b₁₄
Base 15	d1b08₁₅	d1b0e₁₅
Base 16	a21af₁₆	a21b5₁₆