254 (number)

254 (two hundred [and] fifty-four) is the natural number following 253 and preceding 255.

← 253 254 255 →
← 200 210 220 230 240 250 260 270 280 290 → List of numbers — Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	two hundred fifty-four
Ordinal	254th (two hundred and fifty-fourth)
Factorization	2 × 127
Divisors	1, 2, 127, 254
Roman numeral	CCLIV
Binary	111111102
Ternary	1001023
Quaternary	33324
Quinary	20045
Senary	11026
Octal	3768
Duodecimal	19212
Hexadecimal	FE16
Vigesimal	CE20
Base 36	7236

In mathematics

254 is:

• a semiprime
• a central polygonal number^[1]
• a nontotient^[2]

References

1. "Sloane's A000124 : Central polygonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-04-20.
2. "Sloane's A005277 : Nontotients". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-04-20.