28788725

28,788,725 is an odd composite number composed of four prime numbers multiplied together.

What does the number 28788725 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

28788725 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 28788725:

5² × 7² × 71 × 331

(5 × 5 × 7 × 7 × 71 × 331)

See below for interesting mathematical facts about the number 28788725 from the Numbermatics database.

Names of 28788725

Cardinal: 28788725 can be written as Twenty-eight million, seven hundred eighty-eight thousand, seven hundred twenty-five.

Scientific notation

Scientific notation: 2.8788725 × 10⁷

Factors of 28788725

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 414

Divisors of 28788725

Number of divisors d(n): 36
Complete list of divisors:
1 5 7 25 35 49 71 175 245 331 355 497 1225 1655 1775 2317 2485 3479 8275 11585 12425 16219 17395 23501 57925 81095 86975 117505 164507 405475 587525 822535 1151549 4112675 5757745 28788725
Sum of all divisors σ(n): 42238368
Sum of proper divisors (its aliquot sum) s(n): 13449643
28788725 is a deficient number, because the sum of its proper divisors (13449643) is less than itself. Its deficiency is 15339082

Bases of 28788725

Binary: 1101101110100011111110101₂
Hexadecimal: 0x1B747F5
Base-36: H51IT

Squares and roots of 28788725

28788725 squared (28788725²) is 828790687125625
28788725 cubed (28788725³) is 23859827174220658578125
The square root of 28788725 is 5365.5125570629
The cube root of 28788725 is 306.4837670935

Scales and comparisons

How big is 28788725?

28,788,725 seconds is equal to 47 weeks, 4 days, 4 hours, 52 minutes, 5 seconds.
To count from 1 to 28,788,725 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 28788725 cubic inches would be around 25.5 feet tall.

Recreational maths with 28788725

28788725 backwards is 52788782
The number of decimal digits it has is: 8
The sum of 28788725's digits is 47
More coming soon!

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The information we have on file for 28788725 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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