Compare 640631 vs 640634

Property	640631	640634
Type	prime	semiprime
Unique factors	1	2
Total factors	1	2
Prime factorization	640631¹	2¹ × 320317¹
Prime factorization	640631	2 × 320317
Divisors count	2	4
Divisors	1, 640631	1, 2, 320317, 640634
Number of properties	3	1
Isolated primes	40849th
Primes	52122nd
Semiprimes		137278th
Sophie germain primes	5310th
Roman numberals
Base 2	10011100011001110111₂	10011100011001111010₂
Base 3	1012112210002₃	1012112210012₃
Base 4	2130121313₄	2130121322₄
Base 5	131000011₅	131000014₅
Base 6	21421515₆	21421522₆
Base 7	5305505₇	5305511₇
Base 8	2343167₈	2343172₈
Base 9	1175702₉	1175705₉
Base 10	640631₁₀	640634₁₀
Base 11	3a8352₁₁	3a8355₁₁
Base 12	26a89b₁₂	26a8a2₁₂
Base 13	195794₁₃	195797₁₃
Base 14	129675₁₄	129678₁₄
Base 15	c9c3b₁₅	c9c3e₁₅
Base 16	9c677₁₆	9c67a₁₆