Compare 639853 vs 639861

Property	639853	639861
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	639853¹	3¹ × 213287¹
Prime factorization	639853	3 × 213287
Divisors count	2	4
Divisors	1, 639853	1, 3, 213287, 639861
Number of properties	4	1
Cousin primes (1st member)	5629th
Primes	52065th
Prime triplets (2nd member)	2062nd
Semiprimes		137111th
Twin primes (2nd member)	5631st
Roman numberals
Base 2	10011100001101101101₂	10011100001101110101₂
Base 3	1012111201021₃	1012111201120₃
Base 4	2130031231₄	2130031311₄
Base 5	130433403₅	130433421₅
Base 6	21414141₆	21414153₆
Base 7	5303314₇	5303325₇
Base 8	2341555₈	2341565₈
Base 9	1174637₉	1174646₉
Base 10	639853₁₀	639861₁₀
Base 11	3a7805₁₁	3a7812₁₁
Base 12	26a351₁₂	26a359₁₂
Base 13	195316₁₃	195321₁₃
Base 14	12927b₁₄	129285₁₄
Base 15	c98bd₁₅	c98c6₁₅
Base 16	9c36d₁₆	9c375₁₆