256442

256,442 is an even composite number composed of two prime numbers multiplied together.

What does the number 256442 look like?

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

256442 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 256442:

2 × 128221

See below for interesting mathematical facts about the number 256442 from the Numbermatics database.

Names of 256442

Cardinal: 256442 can be written as Two hundred fifty-six thousand, four hundred forty-two.

Scientific notation

Scientific notation: 2.56442 × 10⁵

Factors of 256442

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 2
Sum of prime factors: 128223

Divisors of 256442

Number of divisors d(n): 4
Complete list of divisors:
1 2 128221 256442
Sum of all divisors σ(n): 384666
Sum of proper divisors (its aliquot sum) s(n): 128224
256442 is a deficient number, because the sum of its proper divisors (128224) is less than itself. Its deficiency is 128218

Bases of 256442

Binary: 111110100110111010₂
Hexadecimal: 0x3E9BA
Base-36: 5HVE

Squares and roots of 256442

256442 squared (256442²) is 65762499364
256442 cubed (256442³) is 16864266861902888
The square root of 256442 is 506.4010268551
The cube root of 256442 is 63.5325643627

Scales and comparisons

How big is 256442?

256,442 seconds is equal to 2 days, 23 hours, 14 minutes, 2 seconds.
To count from 1 to 256,442 would take you about two days.

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 256442 cubic inches would be around 5.3 feet tall.

Recreational maths with 256442

256442 backwards is 244652
The number of decimal digits it has is: 6
The sum of 256442's digits is 23
More coming soon!

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The information we have on file for 256442 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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