Compare 639949 vs 639953

Property	639949	639953
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	639949¹	127¹ × 5039¹
Prime factorization	639949	127 × 5039
Divisors count	2	4
Divisors	1, 639949	1, 127, 5039, 639953
Number of properties	3	1
Isolated primes	40810th
Primes	52071st
Semiprimes		137135th
Ulam primes	3816th
Roman numberals
Base 2	10011100001111001101₂	10011100001111010001₂
Base 3	1012111211211₃	1012111211222₃
Base 4	2130033031₄	2130033101₄
Base 5	130434244₅	130434303₅
Base 6	21414421₆	21414425₆
Base 7	5303512₇	5303516₇
Base 8	2341715₈	2341721₈
Base 9	1174754₉	1174758₉
Base 10	639949₁₀	639953₁₀
Base 11	3a7892₁₁	3a7896₁₁
Base 12	26a411₁₂	26a415₁₂
Base 13	19538b₁₃	195392₁₃
Base 14	129309₁₄	12930d₁₄
Base 15	c9934₁₅	c9938₁₅
Base 16	9c3cd₁₆	9c3d1₁₆