21406672

21,406,672 is an even composite number composed of four prime numbers multiplied together.

What does the number 21406672 look like?

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

21406672 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 21406672:

2⁴ × 7 × 17 × 11243

(2 × 2 × 2 × 2 × 7 × 17 × 11243)

See below for interesting mathematical facts about the number 21406672 from the Numbermatics database.

Names of 21406672

Cardinal: 21406672 can be written as Twenty-one million, four hundred six thousand, six hundred seventy-two.

Scientific notation

Scientific notation: 2.1406672 × 10⁷

Factors of 21406672

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 11269

Divisors of 21406672

Number of divisors d(n): 40
Complete list of divisors:
1 2 4 7 8 14 16 17 28 34 56 68 112 119 136 238 272 476 952 1904 11243 22486 44972 78701 89944 157402 179888 191131 314804 382262 629608 764524 1259216 1337917 1529048 2675834 3058096 5351668 10703336 21406672
Sum of all divisors σ(n): 50193216
Sum of proper divisors (its aliquot sum) s(n): 28786544
21406672 is an abundant number, because the sum of its proper divisors (28786544) is greater than itself. Its abundance is 7379872

Bases of 21406672

Binary: 1010001101010001111010000₂
Hexadecimal: 0x146A3D0
Base-36: CQTHS

Squares and roots of 21406672

21406672 squared (21406672²) is 458245606115584
21406672 cubed (21406672³) is 9809513385557500776448
The square root of 21406672 is 4626.7344855743
The cube root of 21406672 is 277.6619599425

Scales and comparisons

How big is 21406672?

21,406,672 seconds is equal to 35 weeks, 2 days, 18 hours, 17 minutes, 52 seconds.
To count from 1 to 21,406,672 would take you about fifteen 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 21406672 cubic inches would be around 23.1 feet tall.

Recreational maths with 21406672

21406672 backwards is 27660412
21406672 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 21406672's digits is 28
More coming soon!

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The information we have on file for 21406672 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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