Compare 640247 vs 640267

Property	640247	640267
Type	prime	prime
Unique factors	1	1
Total factors	1	1
Prime factorization	640247¹	640267¹
Prime factorization	640247	640267
Divisors count	2	2
Divisors	1, 640247	1, 640267
Number of properties	5	3
Additive primes	20362nd
Chen primes	20388th
Isolated primes		40830th
Primes	52097th	52101st
Sexy primes (2nd member)		11288th
Twin primes (1st member)	5635th
Ulam primes	3818th
Roman numberals
Base 2	10011100010011110111₂	10011100010100001011₂
Base 3	1012112020212₃	1012112021121₃
Base 4	2130103313₄	2130110023₄
Base 5	130441442₅	130442032₅
Base 6	21420035₆	21420111₆
Base 7	5304416₇	5304445₇
Base 8	2342367₈	2342413₈
Base 9	1175225₉	1175247₉
Base 10	640247₁₀	640267₁₀
Base 11	3a8033₁₁	3a8051₁₁
Base 12	26a61b₁₂	26a637₁₂
Base 13	19555a₁₃	195574₁₃
Base 14	12947d₁₄	129495₁₄
Base 15	c9a82₁₅	c9a97₁₅
Base 16	9c4f7₁₆	9c50b₁₆