28218690

28,218,690 is an even composite number composed of five prime numbers multiplied together.

What does the number 28218690 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

28218690 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 28218690:

2 × 3² × 5 × 241 × 1301

(2 × 3 × 3 × 5 × 241 × 1301)

See below for interesting mathematical facts about the number 28218690 from the Numbermatics database.

Names of 28218690

Cardinal: 28218690 can be written as Twenty-eight million, two hundred eighteen thousand, six hundred ninety.

Scientific notation

Scientific notation: 2.821869 × 10⁷

Factors of 28218690

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 1552

Divisors of 28218690

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 5 6 9 10 15 18 30 45 90 241 482 723 1205 1301 1446 2169 2410 2602 3615 3903 4338 6505 7230 7806 10845 11709 13010 19515 21690 23418 39030 58545 117090 313541 627082 940623 1567705 1881246 2821869 3135410 4703115 5643738 9406230 14109345 28218690
Sum of all divisors σ(n): 73729656
Sum of proper divisors (its aliquot sum) s(n): 45510966
28218690 is an abundant number, because the sum of its proper divisors (45510966) is greater than itself. Its abundance is 17292276

Bases of 28218690

Binary: 1101011101001010101000010₂
Hexadecimal: 0x1AE9542
Base-36: GSTOI

Squares and roots of 28218690

28218690 squared (28218690²) is 796294465316100
28218690 cubed (28218690³) is 22470386665470777909000
The square root of 28218690 is 5312.1266927663
The cube root of 28218690 is 304.4474093621

Scales and comparisons

How big is 28218690?

28,218,690 seconds is equal to 46 weeks, 4 days, 14 hours, 31 minutes, 30 seconds.
To count from 1 to 28,218,690 would take you about seventeen 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 28218690 cubic inches would be around 25.4 feet tall.

Recreational maths with 28218690

28218690 backwards is 09681282
The number of decimal digits it has is: 8
The sum of 28218690's digits is 36
More coming soon!

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The information we have on file for 28218690 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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