The numerical equivalent of 42 is simply 42 itself. In mathematics, numbers are expressed as numerals, and in this case, 42 is already its numerical form.

Would you like to dive deeper into this, or do you have any further questions?

Here are 5 relative questions you might find interesting:

1. What is the significance of the number 42 in various fields like mathematics and science?
2. Can you convert 42 into binary, hexadecimal, or another numeral system?
3. How would you represent 42 as a Roman numeral?
4. What are the prime factors of 42?
5. How do you calculate the square root of 42?

Tip: Numbers can be expressed in various bases like binary (base 2), octal (base 8), and hexadecimal (base 16) depending on context!