1234 (number)

This article is about the number 1234. For the year, see 1234. For other uses, see 1234 (disambiguation).

1234 is the natural number following 1233, and preceding 1235. It has two distinct prime factors, 2 and 617, making it a squarefree semiprime.^[1] It is the number of independent vertex sets in a 4×4 square grid, or equivalently, the number of distinct 4×4 binary matrices in which no two adjacent elements are both equal to 1.^[2]

← 1233 1234 1235 →
List of numbers Integers ← 0 1k 2k 3k 4k 5k 6k 7k 8k 9k →
Cardinal	one thousand two hundred thirty-four
Ordinal	1234th (one thousand two hundred thirty-fourth)
Factorization	2 × 617
Greek numeral	,ΑΣΛΔ´
Roman numeral	MCCXXXIV, mccxxxiv
Binary	100110100102
Ternary	12002013
Senary	54146
Octal	23228
Duodecimal	86A12
Hexadecimal	4D216

A 2012 study of frequently-used personal identification numbers (PIN) found that, among 4-digit PIN codes, 1234 is the most frequently chosen.^[3]