Compare 666649 vs 666667

Property	666649	666667
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	666649¹	666667¹
Prime factorization	666649	666667
Divisors count	2	2
Divisors	1, 666649	1, 666667
Number of properties	6	5
Additive primes	21105th	21106th
Cousin primes (1st member)		5831st
Isolated primes		42397th
Lucky primes		6184th
Primes	54069th	54070th
Prime triplets (3rd member)	2130th
Sexy primes (2nd member)	11668th
Sexy prime triplets (3rd member)	2126th
Twin primes (2nd member)	5837th
Roman numberals
Base 2	10100010110000011001₂	10100010110000101011₂
Base 3	1020212110201₃	1020212111101₃
Base 4	2202300121₄	2202300223₄
Base 5	132313044₅	132313132₅
Base 6	22142201₆	22142231₆
Base 7	5444404₇	5444431₇
Base 8	2426031₈	2426053₈
Base 9	1225421₉	1225441₉
Base 10	666649₁₀	666667₁₀
Base 11	415955₁₁	415971₁₁
Base 12	281961₁₂	281977₁₂
Base 13	1a4589₁₃	1a45a1₁₃
Base 14	134d3b₁₄	134d51₁₄
Base 15	d27d4₁₅	d27e7₁₅
Base 16	a2c19₁₆	a2c2b₁₆