Compare 639997 vs 640223

Property	639997	640223
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	639997¹	640223¹
Prime factorization	639997	640223
Divisors count	2	2
Divisors	1, 639997	1, 640223
Number of properties	4	5
Additive primes	20349th	20360th
Cousin primes (2nd member)		5633rd
Isolated primes	40813th	40829th
Lucky primes	5977th
Primes	52074th	52094th
Sexy primes (1st member)		11287th
Roman numberals
Base 2	10011100001111111101₂	10011100010011011111₂
Base 3	1012111220121₃	1012112012222₃
Base 4	2130033331₄	2130103133₄
Base 5	130434442₅	130441343₅
Base 6	21414541₆	21415555₆
Base 7	5303611₇	5304353₇
Base 8	2341775₈	2342337₈
Base 9	1174817₉	1175188₉
Base 10	639997₁₀	640223₁₀
Base 11	3a7926₁₁	3a8011₁₁
Base 12	26a451₁₂	26a5bb₁₂
Base 13	1953c7₁₃	19553c₁₃
Base 14	129341₁₄	129463₁₄
Base 15	c9967₁₅	c9a68₁₅
Base 16	9c3fd₁₆	9c4df₁₆