28890

28,890 is an even composite number composed of four prime numbers multiplied together.

What does the number 28890 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 32 divisors.

28890 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 28890:

2 × 3³ × 5 × 107

(2 × 3 × 3 × 3 × 5 × 107)

See below for interesting mathematical facts about the number 28890 from the Numbermatics database.

Names of 28890

Cardinal: 28890 can be written as Twenty-eight thousand, eight hundred ninety.

Scientific notation

Scientific notation: 2.889 × 10⁴

Factors of 28890

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 117

Divisors of 28890

Number of divisors d(n): 32
Complete list of divisors:
1 2 3 5 6 9 10 15 18 27 30 45 54 90 107 135 214 270 321 535 642 963 1070 1605 1926 2889 3210 4815 5778 9630 14445 28890
Sum of all divisors σ(n): 77760
Sum of proper divisors (its aliquot sum) s(n): 48870
28890 is an abundant number, because the sum of its proper divisors (48870) is greater than itself. Its abundance is 19980

Bases of 28890

Binary: 111000011011010₂
Hexadecimal: 0x70DA
Base-36: MAI

Squares and roots of 28890

28890 squared (28890²) is 834632100
28890 cubed (28890³) is 24112521369000
The square root of 28890 is 169.9705856905
The cube root of 28890 is 30.6842736531

Scales and comparisons

How big is 28890?

28,890 seconds is equal to 8 hours, 1 minute, 30 seconds.
To count from 1 to 28,890 would take you about eight 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 28890 cubic inches would be around 2.6 feet tall.

Recreational maths with 28890

28890 backwards is 09882
28890 is a Harshad number.
The number of decimal digits it has is: 5
The sum of 28890's digits is 27
More coming soon!

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The information we have on file for 28890 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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