28828821

28,828,821 is an odd composite number composed of five prime numbers multiplied together.

What does the number 28828821 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 32 divisors.

28828821 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 28828821:

3 × 7 × 17 × 23 × 3511

See below for interesting mathematical facts about the number 28828821 from the Numbermatics database.

Names of 28828821

Cardinal: 28828821 can be written as Twenty-eight million, eight hundred twenty-eight thousand, eight hundred twenty-one.

Scientific notation

Scientific notation: 2.8828821 × 10⁷

Factors of 28828821

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 3561

Divisors of 28828821

Number of divisors d(n): 32
Complete list of divisors:
1 3 7 17 21 23 51 69 119 161 357 391 483 1173 2737 3511 8211 10533 24577 59687 73731 80753 179061 242259 417809 565271 1253427 1372801 1695813 4118403 9609607 28828821
Sum of all divisors σ(n): 48549888
Sum of proper divisors (its aliquot sum) s(n): 19721067
28828821 is a deficient number, because the sum of its proper divisors (19721067) is less than itself. Its deficiency is 9107754

Bases of 28828821

Binary: 1101101111110010010010101₂
Hexadecimal: 0x1B7E495
Base-36: H5WGL

Squares and roots of 28828821

28828821 squared (28828821²) is 831100920250041
28828821 cubed (28828821³) is 23959659662823707231661
The square root of 28828821 is 5369.2477126689
The cube root of 28828821 is 306.6259879617

Scales and comparisons

How big is 28828821?

28,828,821 seconds is equal to 47 weeks, 4 days, 16 hours, 21 seconds.
To count from 1 to 28,828,821 would take you about nineteen 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 28828821 cubic inches would be around 25.6 feet tall.

Recreational maths with 28828821

28828821 backwards is 12882882
The number of decimal digits it has is: 8
The sum of 28828821's digits is 39
More coming soon!

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The information we have on file for 28828821 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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