Compare 639949 vs 639956

Property	639949	639956
Type	prime	composite number
Unique factors	1	3
Total factors	1	4
Prime factorization	639949¹	2² × 139¹ × 1151¹
Prime factorization	639949	2 × 2 × 139 × 1151
Divisors count	2	12
Divisors	1, 639949	1, 2, 4, 139, 278, 556, 1151, 2302, 4604, 159989, 319978, 639956
Number of properties	3	0
Isolated primes	40810th
Primes	52071st
Ulam primes	3816th
Roman numberals
Base 2	10011100001111001101₂	10011100001111010100₂
Base 3	1012111211211₃	1012111212002₃
Base 4	2130033031₄	2130033110₄
Base 5	130434244₅	130434311₅
Base 6	21414421₆	21414432₆
Base 7	5303512₇	5303522₇
Base 8	2341715₈	2341724₈
Base 9	1174754₉	1174762₉
Base 10	639949₁₀	639956₁₀
Base 11	3a7892₁₁	3a7899₁₁
Base 12	26a411₁₂	26a418₁₂
Base 13	19538b₁₃	195395₁₃
Base 14	129309₁₄	129312₁₄
Base 15	c9934₁₅	c993b₁₅
Base 16	9c3cd₁₆	9c3d4₁₆