8421875

8,421,875 is an odd composite number composed of three prime numbers multiplied together.

What does the number 8421875 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 42 divisors.

8421875 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of forty-two divisors.

Prime factorization of 8421875:

5⁶ × 7² × 11

(5 × 5 × 5 × 5 × 5 × 5 × 7 × 7 × 11)

See below for interesting mathematical facts about the number 8421875 from the Numbermatics database.

Names of 8421875

Cardinal: 8421875 can be written as Eight million, four hundred twenty-one thousand, eight hundred seventy-five.

Scientific notation

Scientific notation: 8.421875 × 10⁶

Factors of 8421875

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 9
Sum of prime factors: 23

Divisors of 8421875

Number of divisors d(n): 42
Complete list of divisors:
1 5 7 11 25 35 49 55 77 125 175 245 275 385 539 625 875 1225 1375 1925 2695 3125 4375 6125 6875 9625 13475 15625 21875 30625 34375 48125 67375 109375 153125 171875 240625 336875 765625 1203125 1684375 8421875
Sum of all divisors σ(n): 13359204
Sum of proper divisors (its aliquot sum) s(n): 4937329
8421875 is a deficient number, because the sum of its proper divisors (4937329) is less than itself. Its deficiency is 3484546

Bases of 8421875

Binary: 100000001000000111110011₂
Hexadecimal: 0x8081F3
Base-36: 50ICZ

Squares and roots of 8421875

8421875 squared (8421875²) is 70927978515625
8421875 cubed (8421875³) is 597346569061279296875
The square root of 8421875 is 2902.0466915609
The cube root of 8421875 is 203.4555761099

Scales and comparisons

How big is 8421875?

8,421,875 seconds is equal to 13 weeks, 6 days, 11 hours, 24 minutes, 35 seconds.
To count from 1 to 8,421,875 would take you about twenty 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 8421875 cubic inches would be around 17 feet tall.

Recreational maths with 8421875

8421875 backwards is 5781248
8421875 is a Harshad number.
The number of decimal digits it has is: 7
The sum of 8421875's digits is 35
More coming soon!

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The information we have on file for 8421875 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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