Compare 639667 vs 639679

Property	639667	639679
Type	semiprime	prime
Unique factors	2	1
Total factors	2	1
Prime factorization	7¹ × 91381¹	639679¹
Prime factorization	7 × 91381	639679
Divisors count	4	2
Divisors	1, 7, 91381, 639667	1, 639679
Number of properties	1	2
Primes		52052nd
Semiprimes	137072nd
Twin primes (2nd member)		5629th
Roman numberals
Base 2	10011100001010110011₂	10011100001010111111₂
Base 3	1012111110101₃	1012111110211₃
Base 4	2130022303₄	2130022333₄
Base 5	130432132₅	130432204₅
Base 6	21413231₆	21413251₆
Base 7	5302630₇	5302645₇
Base 8	2341263₈	2341277₈
Base 9	1174411₉	1174424₉
Base 10	639667₁₀	639679₁₀
Base 11	3a7656₁₁	3a7667₁₁
Base 12	26a217₁₂	26a227₁₂
Base 13	195202₁₃	195211₁₃
Base 14	129187₁₄	129195₁₄
Base 15	c97e7₁₅	c9804₁₅
Base 16	9c2b3₁₆	9c2bf₁₆