278 (number)

← 277 278 279 →
← 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 seventy-eight
Ordinal	278th; (two hundred seventy-eighth)
Factorization	2 × 139
Divisors	1, 2, 139, 278
Greek numeral	ΣΟΗ´
Roman numeral	CCLXXVIII
Binary	1000101102
Ternary	1010223
Senary	11426
Octal	4268
Duodecimal	1B212
Hexadecimal	11616

278 is the natural number following 277 and preceding 279.

In mathematics

278 is an even composite number with 2 prime factors.[1]
278 is equal to Φ(30). It is the sum of the totient function.[2]
278 is a nontotient number which means that it is an even number that doesn't follow Euler's totient function.[3]
278 is the smallest semiprime number that has an anagram that is also semiprime. The other number is 287.[4]

On October 29, 2011, April Mathis lifted the heaviest squat weight by a female at 278 kg in Orlando, Florida.[5]
On November, 10, 1993, Tom Rodden received the Guinness World Record for shaving 278 people in one hour.[6]
On March 25, 2000, in Meadowhall Center, there were 278 human mannequins in the shopping center. They were in a total of 114 stores.[7]
On December 5, 2006, James Cripps received the Guinness World Record for the highest score in backwards bowling. The score was 278.[8]

The calendar years 278 AD and 278 BC.
278 is the number of several highways in Canada, Japan, and the United States.
278 Paulina is an asteroid in the asteroid belt. It was discovered by Johann Palisa in Vienna.[9]

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