13

Thirteen.

Prime

13 is prime

Next prime number is 17

Fibonacci

13 a Fibonacci number

Quick Response (QR) Code

What is a QR code?

Data: 13

EC Level:

Barcode

Data: 13

Format:

Odd

13 is odd

Previous odd number is 11

Next odd number is 15

Hexadecimal

d

Roman Numerals

XIII

Unix Timestamp

Thursday, 01 January 1970 00:00:13 UTC