21485400

21,485,400 is an even composite number composed of four prime numbers multiplied together.

What does the number 21485400 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 48 divisors.

21485400 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21485400:

2³ × 3 × 5² × 35809

(2 × 2 × 2 × 3 × 5 × 5 × 35809)

See below for interesting mathematical facts about the number 21485400 from the Numbermatics database.

Names of 21485400

Cardinal: 21485400 can be written as Twenty-one million, four hundred eighty-five thousand, four hundred.

Scientific notation

Scientific notation: 2.14854 × 10⁷

Factors of 21485400

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 35819

Divisors of 21485400

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 150 200 300 600 35809 71618 107427 143236 179045 214854 286472 358090 429708 537135 716180 859416 895225 1074270 1432360 1790450 2148540 2685675 3580900 4297080 5371350 7161800 10742700 21485400
Sum of all divisors σ(n): 66606600
Sum of proper divisors (its aliquot sum) s(n): 45121200
21485400 is an abundant number, because the sum of its proper divisors (45121200) is greater than itself. Its abundance is 23635800

Bases of 21485400

Binary: 1010001111101011101011000₂
Hexadecimal: 0x147D758
Base-36: CSI8O

Squares and roots of 21485400

21485400 squared (21485400²) is 461622413160000
21485400 cubed (21485400³) is 9918142195707864000000
The square root of 21485400 is 4635.2346218935
The cube root of 21485400 is 278.0019322539

Scales and comparisons

How big is 21485400?

21,485,400 seconds is equal to 35 weeks, 3 days, 16 hours, 10 minutes.
To count from 1 to 21,485,400 would take you about two 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 21485400 cubic inches would be around 23.2 feet tall.

Recreational maths with 21485400

21485400 backwards is 00458412
21485400 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21485400's digits is 24
More coming soon!

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The information we have on file for 21485400 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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