Compare 639697 vs 640457

Property	639697	640457
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639697¹	640457¹
Prime factorization	639697	640457
Divisors count	2	2
Divisors	1, 639697	1, 640457
Number of properties	5	4
Chen primes		20391st
Cousin primes (1st member)	5628th
Isolated primes	40797th	40839th
Primes	52054th	52110th
Prime triplets (1st member)	2061st
Sexy primes (1st member)	11281st	11290th
Roman numberals
Base 2	10011100001011010001₂	10011100010111001001₂
Base 3	1012111111111₃	1012112112122₃
Base 4	2130023101₄	2130113021₄
Base 5	130432242₅	130443312₅
Base 6	21413321₆	21421025₆
Base 7	5303002₇	5305136₇
Base 8	2341321₈	2342711₈
Base 9	1174444₉	1175478₉
Base 10	639697₁₀	640457₁₀
Base 11	3a7683₁₁	3a8204₁₁
Base 12	26a241₁₂	26a775₁₂
Base 13	195226₁₃	19568c₁₃
Base 14	1291a9₁₄	12958d₁₄
Base 15	c9817₁₅	c9b72₁₅
Base 16	9c2d1₁₆	9c5c9₁₆