Required Mathematical Intelligence

Chapter 8 Finding Similarities
Being good at finding the similarities and differences and internal connections of things, and being good at discovering the development laws of things are the basic qualities and conditions that should be possessed in any research work.Please find out, how many similarities do the following two numbers have?
24683579
[Answer: At first glance it seems that there are only differences and no similarities.In fact, as long as you are good at searching, there are still many similarities. This is a very useful ability to cultivate.Here are a few examples: ① are all Arabic numerals; ② are all 4 digits; ③ are all positive numbers; ④ are all integers; ⑤ the difference between two adjacent numbers is equal. ]
(End of this chapter)