161540

161,540 is an even composite number composed of four prime numbers multiplied together.

What does the number 161540 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

161540 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 161540:

2² × 5 × 41 × 197

(2 × 2 × 5 × 41 × 197)

See below for interesting mathematical facts about the number 161540 from the Numbermatics database.

Names of 161540

Cardinal: 161540 can be written as One hundred sixty-one thousand, five hundred forty.

Scientific notation

Scientific notation: 1.6154 × 10⁵

Factors of 161540

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 245

Divisors of 161540

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 5 10 20 41 82 164 197 205 394 410 788 820 985 1970 3940 8077 16154 32308 40385 80770 161540
Sum of all divisors σ(n): 349272
Sum of proper divisors (its aliquot sum) s(n): 187732
161540 is an abundant number, because the sum of its proper divisors (187732) is greater than itself. Its abundance is 26192

Bases of 161540

Binary: 100111011100000100₂
Hexadecimal: 0x27704
Base-36: 3GN8

Squares and roots of 161540

161540 squared (161540²) is 26095171600
161540 cubed (161540³) is 4215414020264000
The square root of 161540 is 401.9203901271
The cube root of 161540 is 54.4619716195

Scales and comparisons

How big is 161540?

161,540 seconds is equal to 1 day, 20 hours, 52 minutes, 20 seconds.
To count from 1 to 161,540 would take you about twenty hours.

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 161540 cubic inches would be around 4.5 feet tall.

Recreational maths with 161540

161540 backwards is 045161
The number of decimal digits it has is: 6
The sum of 161540's digits is 17
More coming soon!

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The information we have on file for 161540 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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