21405104

21,405,104 is an even composite number composed of four prime numbers multiplied together.

What does the number 21405104 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 40 divisors.

21405104 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty divisors.

Prime factorization of 21405104:

2⁴ × 7 × 383 × 499

(2 × 2 × 2 × 2 × 7 × 383 × 499)

See below for interesting mathematical facts about the number 21405104 from the Numbermatics database.

Names of 21405104

Cardinal: 21405104 can be written as Twenty-one million, four hundred five thousand, one hundred four.

Scientific notation

Scientific notation: 2.1405104 × 10⁷

Factors of 21405104

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 891

Divisors of 21405104

Number of divisors d(n): 40
Complete list of divisors:
1 2 4 7 8 14 16 28 56 112 383 499 766 998 1532 1996 2681 3064 3493 3992 5362 6128 6986 7984 10724 13972 21448 27944 42896 55888 191117 382234 764468 1337819 1528936 2675638 3057872 5351276 10702552 21405104
Sum of all divisors σ(n): 47616000
Sum of proper divisors (its aliquot sum) s(n): 26210896
21405104 is an abundant number, because the sum of its proper divisors (26210896) is greater than itself. Its abundance is 4805792

Bases of 21405104

Binary: 1010001101001110110110000₂
Hexadecimal: 0x1469DB0
Base-36: CQSA8

Squares and roots of 21405104

21405104 squared (21405104²) is 458178477250816
21405104 cubed (21405104³) is 9807357956115350564864
The square root of 21405104 is 4626.5650325053
The cube root of 21405104 is 277.6551803643

Scales and comparisons

How big is 21405104?

21,405,104 seconds is equal to 35 weeks, 2 days, 17 hours, 51 minutes, 44 seconds.
To count from 1 to 21,405,104 would take you about fourteen hours!

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 21405104 cubic inches would be around 23.1 feet tall.

Recreational maths with 21405104

21405104 backwards is 40150412
The number of decimal digits it has is: 8
The sum of 21405104's digits is 17
More coming soon!

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The information we have on file for 21405104 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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