2820389

2,820,389 is an odd composite number composed of three prime numbers multiplied together.

What does the number 2820389 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 16 divisors.

2820389 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of sixteen divisors.

Prime factorization of 2820389:

11³ × 13 × 163

(11 × 11 × 11 × 13 × 163)

See below for interesting mathematical facts about the number 2820389 from the Numbermatics database.

Names of 2820389

Cardinal: 2820389 can be written as Two million, eight hundred twenty thousand, three hundred eighty-nine.

Scientific notation

Scientific notation: 2.820389 × 10⁶

Factors of 2820389

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 187

Divisors of 2820389

Number of divisors d(n): 16
Complete list of divisors:
1 11 13 121 143 163 1331 1573 1793 2119 17303 19723 23309 216953 256399 2820389
Sum of all divisors σ(n): 3361344
Sum of proper divisors (its aliquot sum) s(n): 540955
2820389 is a deficient number, because the sum of its proper divisors (540955) is less than itself. Its deficiency is 2279434

Bases of 2820389

Binary: 1010110000100100100101₂
Hexadecimal: 0x2B0925
Base-36: 1OG85

Squares and roots of 2820389

2820389 squared (2820389²) is 7954594111321
2820389 cubed (2820389³) is 22435049731034523869
The square root of 2820389 is 1679.4013814451
The cube root of 2820389 is 141.2872603819

Scales and comparisons

How big is 2820389?

2,820,389 seconds is equal to 4 weeks, 4 days, 15 hours, 26 minutes, 29 seconds.
To count from 1 to 2,820,389 would take you about six weeks!

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 2820389 cubic inches would be around 11.8 feet tall.

Recreational maths with 2820389

2820389 backwards is 9830282
The number of decimal digits it has is: 7
The sum of 2820389's digits is 32
More coming soon!

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The information we have on file for 2820389 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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