478

478 is an even composite number composed of two prime numbers multiplied together.

What does the number 478 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 4 divisors.

478 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of four divisors.

Prime factorization of 478:

2 × 239

See below for interesting mathematical facts about the number 478 from the Numbermatics database.

Names of 478

Cardinal: 478 can be written as Four hundred seventy-eight.

Scientific notation

Scientific notation: 4.78 × 10²

Factors of 478

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 241

Divisors of 478

Number of divisors d(n): 4
Complete list of divisors:
1 2 239 478
Sum of all divisors σ(n): 720
Sum of proper divisors (its aliquot sum) s(n): 242
478 is a deficient number, because the sum of its proper divisors (242) is less than itself. Its deficiency is 236

Bases of 478

Binary: 111011110₂
Hexadecimal: 0x1DE
Base-36: DA

Squares and roots of 478

478 squared (478²) is 228484
478 cubed (478³) is 109215352
The square root of 478 is 21.8632111091
The cube root of 478 is 7.8188455113

Scales and comparisons

How big is 478?

478 seconds is equal to 7 minutes, 58 seconds.
To count from 1 to 478 would take you about three 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 478 cubic inches would be around 0.7 feet tall.

Recreational maths with 478

478 backwards is 874
The number of decimal digits it has is: 3
The sum of 478's digits is 19
More coming soon!

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The information we have on file for 478 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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