421875

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

What does the number 421875 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 28 divisors.

421875 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of twenty-eight divisors.

Prime factorization of 421875:

3³ × 5⁶

(3 × 3 × 3 × 5 × 5 × 5 × 5 × 5 × 5)

See below for interesting mathematical facts about the number 421875 from the Numbermatics database.

Names of 421875

Cardinal: 421875 can be written as Four hundred twenty-one thousand, eight hundred seventy-five.

Scientific notation

Scientific notation: 4.21875 × 10⁵

Factors of 421875

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 9
Sum of prime factors: 8

Divisors of 421875

Number of divisors d(n): 28
Complete list of divisors:
1 3 5 9 15 25 27 45 75 125 135 225 375 625 675 1125 1875 3125 3375 5625 9375 15625 16875 28125 46875 84375 140625 421875
Sum of all divisors σ(n): 781240
Sum of proper divisors (its aliquot sum) s(n): 359365
421875 is a deficient number, because the sum of its proper divisors (359365) is less than itself. Its deficiency is 62510

Bases of 421875

Binary: 1100110111111110011₂
Hexadecimal: 0x66FF3
Base-36: 91IR

Squares and roots of 421875

421875 squared (421875²) is 177978515625
421875 cubed (421875³) is 75084686279296875
The square root of 421875 is 649.5190528383
421875 is a perfect cube number. Its cube root is 75
Being both a perfect square and a perfect cube, 421875 is also a perfect sixth number.

Scales and comparisons

How big is 421875?

421,875 seconds is equal to 4 days, 21 hours, 11 minutes, 15 seconds.
To count from 1 to 421,875 would take you about four days.

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 421875 cubic inches would be around 6.3 feet tall.

Recreational maths with 421875

421875 backwards is 578124
421875 is a Harshad number.
The number of decimal digits it has is: 6
The sum of 421875's digits is 27
More coming soon!

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The information we have on file for 421875 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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