I was teaching about e to a couple of undergrad students , used these facts to make the class more lively.
e :
In contemporary internet culture, individuals and organizations frequently pay homage to the number e.
For example, in the IPO filing for Google, in 2004, rather than a typical round-number amount of money, the company announced its intention to raise $2,718,281,828, which is e billion dollars to the nearest dollar.