Compare 661231 vs 662143

Property	661231	662143
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	661231¹	662143¹
Prime factorization	661231	662143
Divisors count	2	2
Divisors	1, 661231	1, 662143
Number of properties	5	3
Additive primes	20951st
Chen primes	20995th
Isolated primes	42084th
Primes	53667th	53728th
Sexy primes (1st member)	11588th	11600th
Twin primes (2nd member)		5796th
Roman numberals
Base 2	10100001011011101111₂	10100001101001111111₂
Base 3	1020121001001₃	1020122021211₃
Base 4	2201123233₄	2201221333₄
Base 5	132124411₅	132142033₅
Base 6	22101131₆	22105251₆
Base 7	5422534₇	5425306₇
Base 8	2413357₈	2415177₈
Base 9	1217031₉	1218254₉
Base 10	661231₁₀	662143₁₀
Base 11	41187a₁₁	412529₁₁
Base 12	27a7a7₁₂	27b227₁₂
Base 13	1a1c7c₁₃	1a2501₁₃
Base 14	132d8b₁₄	13343d₁₄
Base 15	d0dc1₁₅	d12cd₁₅
Base 16	a16ef₁₆	a1a7f₁₆