215985

215,985 is an odd composite number composed of five prime numbers multiplied together.

What does the number 215985 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

215985 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 215985:

3 × 5 × 7 × 11² × 17

(3 × 5 × 7 × 11 × 11 × 17)

See below for interesting mathematical facts about the number 215985 from the Numbermatics database.

Names of 215985

Cardinal: 215985 can be written as Two hundred fifteen thousand, nine hundred eighty-five.

Scientific notation

Scientific notation: 2.15985 × 10⁵

Factors of 215985

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 43

Divisors of 215985

Number of divisors d(n): 48
Complete list of divisors:
1 3 5 7 11 15 17 21 33 35 51 55 77 85 105 119 121 165 187 231 255 357 363 385 561 595 605 847 935 1155 1309 1785 1815 2057 2541 2805 3927 4235 6171 6545 10285 12705 14399 19635 30855 43197 71995 215985
Sum of all divisors σ(n): 459648
Sum of proper divisors (its aliquot sum) s(n): 243663
215985 is an abundant number, because the sum of its proper divisors (243663) is greater than itself. Its abundance is 27678

Bases of 215985

Binary: 110100101110110001₂
Hexadecimal: 0x34BB1
Base-36: 4MNL

Squares and roots of 215985

215985 squared (215985²) is 46649520225
215985 cubed (215985³) is 10075596625796625
The square root of 215985 is 464.7418638341
The cube root of 215985 is 59.9986110789

Scales and comparisons

How big is 215985?

215,985 seconds is equal to 2 days, 11 hours, 59 minutes, 45 seconds.
To count from 1 to 215,985 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 215985 cubic inches would be around 5 feet tall.

Recreational maths with 215985

215985 backwards is 589512
The number of decimal digits it has is: 6
The sum of 215985's digits is 30
More coming soon!

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The information we have on file for 215985 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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