Compare 640967 vs 640979

Property	640967	640979
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	640967¹	199¹ × 3221¹
Prime factorization	640967	199 × 3221
Divisors count	2	4
Divisors	1, 640967	1, 199, 3221, 640979
Number of properties	5	1
Cousin primes (2nd member)	5638th
Isolated primes	40874th
Primes	52149th
Safe primes	3022nd
Semiprimes		137345th
Sexy primes (1st member)	11301st
Roman numberals
Base 2	10011100011111000111₂	10011100011111010011₂
Base 3	1012120020112₃	1012120020222₃
Base 4	2130133013₄	2130133103₄
Base 5	131002332₅	131002404₅
Base 6	21423235₆	21423255₆
Base 7	5306465₇	5306513₇
Base 8	2343707₈	2343723₈
Base 9	1176215₉	1176228₉
Base 10	640967₁₀	640979₁₀
Base 11	3a8628₁₁	3a8639₁₁
Base 12	26ab1b₁₂	26ab2b₁₂
Base 13	195992₁₃	1959a1₁₃
Base 14	129835₁₄	129843₁₄
Base 15	c9db2₁₅	c9dbe₁₅
Base 16	9c7c7₁₆	9c7d3₁₆