Compare 639851 vs 639861

Property	639851	639861
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	639851¹	3¹ × 213287¹
Prime factorization	639851	3 × 213287
Divisors count	2	4
Divisors	1, 639851	1, 3, 213287, 639861
Number of properties	6	1
Chen primes	20371st
Primes	52064th
Prime triplets (1st member)	2062nd
Semiprimes		137111th
Sexy primes (1st member)	11284th
Sophie germain primes	5305th
Twin primes (1st member)	5631st
Roman numberals
Base 2	10011100001101101011₂	10011100001101110101₂
Base 3	1012111201012₃	1012111201120₃
Base 4	2130031223₄	2130031311₄
Base 5	130433401₅	130433421₅
Base 6	21414135₆	21414153₆
Base 7	5303312₇	5303325₇
Base 8	2341553₈	2341565₈
Base 9	1174635₉	1174646₉
Base 10	639851₁₀	639861₁₀
Base 11	3a7803₁₁	3a7812₁₁
Base 12	26a34b₁₂	26a359₁₂
Base 13	195314₁₃	195321₁₃
Base 14	129279₁₄	129285₁₄
Base 15	c98bb₁₅	c98c6₁₅
Base 16	9c36b₁₆	9c375₁₆