21456423

21,456,423 is an odd composite number composed of two prime numbers multiplied together.

What does the number 21456423 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 6 divisors.

21456423 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.

Prime factorization of 21456423:

3² × 2384047

(3 × 3 × 2384047)

See below for interesting mathematical facts about the number 21456423 from the Numbermatics database.

Names of 21456423

Cardinal: 21456423 can be written as Twenty-one million, four hundred fifty-six thousand, four hundred twenty-three.

Scientific notation

Scientific notation: 2.1456423 × 10⁷

Factors of 21456423

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 3
Sum of prime factors: 2384050

Divisors of 21456423

Number of divisors d(n): 6
Complete list of divisors:
1 3 9 2384047 7152141 21456423
Sum of all divisors σ(n): 30992624
Sum of proper divisors (its aliquot sum) s(n): 9536201
21456423 is a deficient number, because the sum of its proper divisors (9536201) is less than itself. Its deficiency is 11920222

Bases of 21456423

Binary: 1010001110110011000100111₂
Hexadecimal: 0x1476627
Base-36: CRVVR

Squares and roots of 21456423

21456423 squared (21456423²) is 460378087954929
21456423 cubed (21456423³) is 9878066995092161558967
The square root of 21456423 is 4632.1078355323
The cube root of 21456423 is 277.8768971723

Scales and comparisons

How big is 21456423?

21,456,423 seconds is equal to 35 weeks, 3 days, 8 hours, 7 minutes, 3 seconds.
To count from 1 to 21,456,423 would take you about twelve 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 21456423 cubic inches would be around 23.2 feet tall.

Recreational maths with 21456423

21456423 backwards is 32465412
The number of decimal digits it has is: 8
The sum of 21456423's digits is 27
More coming soon!

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The information we have on file for 21456423 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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