Compare 639842 vs 639851

Property	639842	639851
Type	composite number	prime
Unique factors	3	1
Total factors	4	1
Prime factorization	2¹ × 7² × 6529¹	639851¹
Prime factorization	2 × 7 × 7 × 6529	639851
Divisors count	12	2
Divisors	1, 2, 7, 14, 49, 98, 6529, 13058, 45703, 91406, 319921, 639842	1, 639851
Number of properties	0	6
Chen primes		20371st
Primes		52064th
Prime triplets (1st member)		2062nd
Sexy primes (1st member)		11284th
Sophie germain primes		5305th
Twin primes (1st member)		5631st
Roman numberals
Base 2	10011100001101100010₂	10011100001101101011₂
Base 3	1012111200212₃	1012111201012₃
Base 4	2130031202₄	2130031223₄
Base 5	130433332₅	130433401₅
Base 6	21414122₆	21414135₆
Base 7	5303300₇	5303312₇
Base 8	2341542₈	2341553₈
Base 9	1174625₉	1174635₉
Base 10	639842₁₀	639851₁₀
Base 11	3a77a5₁₁	3a7803₁₁
Base 12	26a342₁₂	26a34b₁₂
Base 13	195308₁₃	195314₁₃
Base 14	129270₁₄	129279₁₄
Base 15	c98b2₁₅	c98bb₁₅
Base 16	9c362₁₆	9c36b₁₆