Compare 640987 vs 640993

Property	640987	640993
Type	composite number	prime
Unique factors	3	1
Total factors	4	1
Prime factorization	23¹ × 29¹ × 31²	640993¹
Prime factorization	23 × 29 × 31 × 31	640993
Divisors count	12	2
Divisors	1, 23, 29, 31, 667, 713, 899, 961, 20677, 22103, 27869, 640987	1, 640993
Number of properties	0	3
Additive primes		20381st
Isolated primes		40876th
Primes		52151st
Roman numberals
Base 2	10011100011111011011₂	10011100011111100001₂
Base 3	1012120021021₃	1012120021111₃
Base 4	2130133123₄	2130133201₄
Base 5	131002422₅	131002433₅
Base 6	21423311₆	21423321₆
Base 7	5306524₇	5306533₇
Base 8	2343733₈	2343741₈
Base 9	1176237₉	1176244₉
Base 10	640987₁₀	640993₁₀
Base 11	3a8646₁₁	3a8651₁₁
Base 12	26ab37₁₂	26ab41₁₂
Base 13	1959a9₁₃	1959b2₁₃
Base 14	12984b₁₄	129853₁₄
Base 15	c9dc7₁₅	c9dcd₁₅
Base 16	9c7db₁₆	9c7e1₁₆