865280

865,280 is an even composite number composed of three prime numbers multiplied together.

What does the number 865280 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 66 divisors.

865280 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixty-six divisors.

Prime factorization of 865280:

2¹⁰ × 5 × 13²

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 13 × 13)

See below for interesting mathematical facts about the number 865280 from the Numbermatics database.

Names of 865280

Cardinal: 865280 can be written as Eight hundred sixty-five thousand, two hundred eighty.

Scientific notation

Scientific notation: 8.6528 × 10⁵

Factors of 865280

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 13
Sum of prime factors: 20

Divisors of 865280

Number of divisors d(n): 66
Complete list of divisors:
1 2 4 5 8 10 13 16 20 26 32 40 52 64 65 80 104 128 130 160 169 208 256 260 320 338 416 512 520 640 676 832 845 1024 1040 1280 1352 1664 1690 2080 2560 2704 3328 3380 4160 5120 5408 6656 6760 8320 10816 13312 13520 16640 21632 27040 33280 43264 54080 66560 86528 108160 173056 216320 432640 865280
Sum of all divisors σ(n): 2247606
Sum of proper divisors (its aliquot sum) s(n): 1382326
865280 is an abundant number, because the sum of its proper divisors (1382326) is greater than itself. Its abundance is 517046

Bases of 865280

Binary: 11010011010000000000₂
Hexadecimal: 0xD3400
Base-36: IJNK

Squares and roots of 865280

865280 squared (865280²) is 748709478400
865280 cubed (865280³) is 647843337469952000
The square root of 865280 is 930.2042786399
The cube root of 865280 is 95.2910740157

Scales and comparisons

How big is 865280?

865,280 seconds is equal to 1 week, 3 days, 21 minutes, 20 seconds.
To count from 1 to 865,280 would take you about three 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 865280 cubic inches would be around 7.9 feet tall.

Recreational maths with 865280

865280 backwards is 082568
The number of decimal digits it has is: 6
The sum of 865280's digits is 29
More coming soon!

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The information we have on file for 865280 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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