215 (number)

← 214 215 216 →
← 210 211 212 213 214 215 216 217 218 219 → List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	two hundred fifteen
Ordinal	215th (two hundred fifteenth)
Factorization	5 × 43
Divisors	1, 5, 43, 215
Greek numeral	ΣΙΕ´
Roman numeral	CCXV, ccxv
Binary	110101112
Ternary	212223
Senary	5556
Octal	3278
Duodecimal	15B12
Hexadecimal	D716

215 (two hundred [and] fifteen) is the natural number following 214 and preceding 216.

In mathematics

• 215 is a semiprime.
• $215=(3!)^{3}-1$.
• 215 is the coefficient of the quadratic term in the Maclaurin series for $x*(5+215*x-1253*x^{2}-23*x^{3})/((1+34*x+x^{2})*(1-34*x+x^{2}))$.
• 215 is a vertically symmetric number on a calculator display (sequence A053701 in the OEIS).

In other fields

• California Proposition 215 legalized Marijuana for medical use for the first time in the United States.