305 (number)

305 is the natural number following 304 and preceding 306.

← 304 305 306 →
List of numbers Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	three hundred five
Ordinal	305th (three hundred fifth)
Factorization	5 × 61
Divisors	1, 5, 61, 305
Greek numeral	ΤΕ´
Roman numeral	CCCV, cccv
Binary	1001100012
Ternary	1020223
Senary	12256
Octal	4618
Duodecimal	21512
Hexadecimal	13116

In mathematics

• 305 is an odd composite number with two prime factors.^[1]
• 305 is the convolution of the first 7 primes with themselves.^[2]
• 305 is the fifth hexagonal prism number which is defined by (n+1)(3n²+3n+1).^[3]
• 305 is the hypotenuse of two Pythagorean triples. 305²=207²+224²=136²+273².^[4][5]