28664220

28,664,220 is an even composite number composed of five prime numbers multiplied together.

What does the number 28664220 look like?

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

28664220 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 28664220:

2² × 3 × 5 × 13 × 36749

(2 × 2 × 3 × 5 × 13 × 36749)

See below for interesting mathematical facts about the number 28664220 from the Numbermatics database.

Names of 28664220

Cardinal: 28664220 can be written as Twenty-eight million, six hundred sixty-four thousand, two hundred twenty.

Scientific notation

Scientific notation: 2.866422 × 10⁷

Factors of 28664220

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 36772

Divisors of 28664220

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 5 6 10 12 13 15 20 26 30 39 52 60 65 78 130 156 195 260 390 780 36749 73498 110247 146996 183745 220494 367490 440988 477737 551235 734980 955474 1102470 1433211 1910948 2204940 2388685 2866422 4777370 5732844 7166055 9554740 14332110 28664220
Sum of all divisors σ(n): 86436000
Sum of proper divisors (its aliquot sum) s(n): 57771780
28664220 is an abundant number, because the sum of its proper divisors (57771780) is greater than itself. Its abundance is 29107560

Bases of 28664220

Binary: 1101101010110000110011100₂
Hexadecimal: 0x1B5619C
Base-36: H2DGC

Squares and roots of 28664220

28664220 squared (28664220²) is 821637508208400
28664220 cubed (28664220³) is 23551598295537383448000
The square root of 28664220 is 5353.8976456409
The cube root of 28664220 is 306.0413033229

Scales and comparisons

How big is 28664220?

28,664,220 seconds is equal to 47 weeks, 2 days, 18 hours, 17 minutes.
To count from 1 to 28,664,220 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 28664220 cubic inches would be around 25.5 feet tall.

Recreational maths with 28664220

28664220 backwards is 02246682
28664220 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 28664220's digits is 30
More coming soon!

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The information we have on file for 28664220 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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