308

308 is an even composite number composed of three prime numbers multiplied together.

What does the number 308 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

308 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 308:

2² × 7 × 11

(2 × 2 × 7 × 11)

See below for interesting mathematical facts about the number 308 from the Numbermatics database.

Names of 308

Cardinal: 308 can be written as Three hundred eight.

Scientific notation

Scientific notation: 3.08 × 10²

Factors of 308

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 20

Divisors of 308

Number of divisors d(n): 12
Complete list of divisors:
1 2 4 7 11 14 22 28 44 77 154 308
Sum of all divisors σ(n): 672
Sum of proper divisors (its aliquot sum) s(n): 364
308 is an abundant number, because the sum of its proper divisors (364) is greater than itself. Its abundance is 56

Bases of 308

Binary: 100110100₂
Hexadecimal: 0x134
Base-36: 8K

Squares and roots of 308

308 squared (308²) is 94864
308 cubed (308³) is 29218112
The square root of 308 is 17.5499287747
The cube root of 308 is 6.7533134165

Scales and comparisons

How big is 308?

308 seconds is equal to 5 minutes, 8 seconds.
To count from 1 to 308 would take you about two minutes.

This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
A cube with a volume of 308 cubic inches would be around 0.6 feet tall.

Recreational maths with 308

308 backwards is 803
308 is a Harshad number.
The number of decimal digits it has is: 3
The sum of 308's digits is 11
More coming soon!

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The information we have on file for 308 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!

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