161640

161,640 is an even composite number composed of four prime numbers multiplied together.

What does the number 161640 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

161640 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 161640:

2³ × 3² × 5 × 449

(2 × 2 × 2 × 3 × 3 × 5 × 449)

See below for interesting mathematical facts about the number 161640 from the Numbermatics database.

Names of 161640

Cardinal: 161640 can be written as One hundred sixty-one thousand, six hundred forty.

Scientific notation

Scientific notation: 1.6164 × 10⁵

Factors of 161640

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 459

Divisors of 161640

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 180 360 449 898 1347 1796 2245 2694 3592 4041 4490 5388 6735 8082 8980 10776 13470 16164 17960 20205 26940 32328 40410 53880 80820 161640
Sum of all divisors σ(n): 526500
Sum of proper divisors (its aliquot sum) s(n): 364860
161640 is an abundant number, because the sum of its proper divisors (364860) is greater than itself. Its abundance is 203220

Bases of 161640

Binary: 100111011101101000₂
Hexadecimal: 0x27768
Base-36: 3GQ0

Squares and roots of 161640

161640 squared (161640²) is 26127489600
161640 cubed (161640³) is 4223247418944000
The square root of 161640 is 402.0447736261
The cube root of 161640 is 54.4732073789

Scales and comparisons

How big is 161640?

161,640 seconds is equal to 1 day, 20 hours, 54 minutes.
To count from 1 to 161,640 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 161640 cubic inches would be around 4.5 feet tall.

Recreational maths with 161640

161640 backwards is 046161
161640 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 161640's digits is 18
More coming soon!

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The information we have on file for 161640 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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