215840

215,840 is an even composite number composed of four prime numbers multiplied together.

What does the number 215840 look like?

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

215840 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 215840:

2⁵ × 5 × 19 × 71

(2 × 2 × 2 × 2 × 2 × 5 × 19 × 71)

See below for interesting mathematical facts about the number 215840 from the Numbermatics database.

Names of 215840

Cardinal: 215840 can be written as Two hundred fifteen thousand, eight hundred forty.

Scientific notation

Scientific notation: 2.1584 × 10⁵

Factors of 215840

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 8
Sum of prime factors: 97

Divisors of 215840

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 8 10 16 19 20 32 38 40 71 76 80 95 142 152 160 190 284 304 355 380 568 608 710 760 1136 1349 1420 1520 2272 2698 2840 3040 5396 5680 6745 10792 11360 13490 21584 26980 43168 53960 107920 215840
Sum of all divisors σ(n): 544320
Sum of proper divisors (its aliquot sum) s(n): 328480
215840 is an abundant number, because the sum of its proper divisors (328480) is greater than itself. Its abundance is 112640

Bases of 215840

Binary: 110100101100100000₂
Hexadecimal: 0x34B20
Base-36: 4MJK

Squares and roots of 215840

215840 squared (215840²) is 46586905600
215840 cubed (215840³) is 10055317704704000
The square root of 215840 is 464.5858370635
The cube root of 215840 is 59.9851815257

Scales and comparisons

How big is 215840?

215,840 seconds is equal to 2 days, 11 hours, 57 minutes, 20 seconds.
To count from 1 to 215,840 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 215840 cubic inches would be around 5 feet tall.

Recreational maths with 215840

215840 backwards is 048512
215840 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 215840's digits is 20
More coming soon!

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The information we have on file for 215840 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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