Compare 639947 vs 639949

Property	639947	639949
Type	composite number	prime
Unique factors	3	1
Total factors	3	1
Prime factorization	7¹ × 11¹ × 8311¹	639949¹
Prime factorization	7 × 11 × 8311	639949
Divisors count	8	2
Divisors	1, 7, 11, 77, 8311, 58177, 91421, 639947	1, 639949
Number of properties	0	3
Isolated primes		40810th
Primes		52071st
Ulam primes		3816th
Roman numberals
Base 2	10011100001111001011₂	10011100001111001101₂
Base 3	1012111211202₃	1012111211211₃
Base 4	2130033023₄	2130033031₄
Base 5	130434242₅	130434244₅
Base 6	21414415₆	21414421₆
Base 7	5303510₇	5303512₇
Base 8	2341713₈	2341715₈
Base 9	1174752₉	1174754₉
Base 10	639947₁₀	639949₁₀
Base 11	3a7890₁₁	3a7892₁₁
Base 12	26a40b₁₂	26a411₁₂
Base 13	195389₁₃	19538b₁₃
Base 14	129307₁₄	129309₁₄
Base 15	c9932₁₅	c9934₁₅
Base 16	9c3cb₁₆	9c3cd₁₆