28409216

28,409,216 is an even composite number composed of three prime numbers multiplied together.

What does the number 28409216 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 32 divisors.

28409216 is an even composite number. It is composed of three distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 28409216:

2⁷ × 11 × 20177

(2 × 2 × 2 × 2 × 2 × 2 × 2 × 11 × 20177)

See below for interesting mathematical facts about the number 28409216 from the Numbermatics database.

Names of 28409216

Cardinal: 28409216 can be written as Twenty-eight million, four hundred nine thousand, two hundred sixteen.

Scientific notation

Scientific notation: 2.8409216 × 10⁷

Factors of 28409216

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 9
Sum of prime factors: 20190

Divisors of 28409216

Number of divisors d(n): 32
Complete list of divisors:
1 2 4 8 11 16 22 32 44 64 88 128 176 352 704 1408 20177 40354 80708 161416 221947 322832 443894 645664 887788 1291328 1775576 2582656 3551152 7102304 14204608 28409216
Sum of all divisors σ(n): 61744680
Sum of proper divisors (its aliquot sum) s(n): 33335464
28409216 is an abundant number, because the sum of its proper divisors (33335464) is greater than itself. Its abundance is 4926248

Bases of 28409216

Binary: 1101100010111110110000000₂
Hexadecimal: 0x1B17D80
Base-36: GWWOW

Squares and roots of 28409216

28409216 squared (28409216²) is 807083553734656
28409216 cubed (28409216³) is 22928611008095448989696
The square root of 28409216 is 5330.0296434447
The cube root of 28409216 is 305.1310589673

Scales and comparisons

How big is 28409216?

28,409,216 seconds is equal to 46 weeks, 6 days, 19 hours, 26 minutes, 56 seconds.
To count from 1 to 28,409,216 would take you about eighteen 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 28409216 cubic inches would be around 25.4 feet tall.

Recreational maths with 28409216

28409216 backwards is 61290482
28409216 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 28409216's digits is 32
More coming soon!

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The information we have on file for 28409216 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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