Compare 640628 vs 640631

Property	640628	640631
Type	composite number	prime
Unique factors	3	1
Total factors	4	1
Prime factorization	2² × 17¹ × 9421¹	640631¹
Prime factorization	2 × 2 × 17 × 9421	640631
Divisors count	12	2
Divisors	1, 2, 4, 17, 34, 68, 9421, 18842, 37684, 160157, 320314, 640628	1, 640631
Number of properties	0	3
Isolated primes		40849th
Primes		52122nd
Sophie germain primes		5310th
Roman numberals
Base 2	10011100011001110100₂	10011100011001110111₂
Base 3	1012112202222₃	1012112210002₃
Base 4	2130121310₄	2130121313₄
Base 5	131000003₅	131000011₅
Base 6	21421512₆	21421515₆
Base 7	5305502₇	5305505₇
Base 8	2343164₈	2343167₈
Base 9	1175688₉	1175702₉
Base 10	640628₁₀	640631₁₀
Base 11	3a834a₁₁	3a8352₁₁
Base 12	26a898₁₂	26a89b₁₂
Base 13	195791₁₃	195794₁₃
Base 14	129672₁₄	129675₁₄
Base 15	c9c38₁₅	c9c3b₁₅
Base 16	9c674₁₆	9c677₁₆