40

Forty.

(

ASCII Character

ASCII Character #40

Quick Response (QR) Code

What is a QR code?

Barcode

Even

40 is even

Previous even number is 38

Next even number is 42

Squared

Cubed

Hexadecimal

Binary

Power of Two

2⁴⁰ = 1,099,511,627,776

Roman Numerals

XL

Octal

Unix Timestamp

Thursday, 01 January 1970 00:00:40 UTC