21739340

21,739,340 is an even composite number composed of four prime numbers multiplied together.

What does the number 21739340 look like?

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

21739340 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 21739340:

2² × 5 × 7³ × 3169

(2 × 2 × 5 × 7 × 7 × 7 × 3169)

See below for interesting mathematical facts about the number 21739340 from the Numbermatics database.

Names of 21739340

Cardinal: 21739340 can be written as Twenty-one million, seven hundred thirty-nine thousand, three hundred forty.

Scientific notation

Scientific notation: 2.173934 × 10⁷

Factors of 21739340

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 7
Sum of prime factors: 3183

Divisors of 21739340

Number of divisors d(n): 48
Complete list of divisors:
1 2 4 5 7 10 14 20 28 35 49 70 98 140 196 245 343 490 686 980 1372 1715 3169 3430 6338 6860 12676 15845 22183 31690 44366 63380 88732 110915 155281 221830 310562 443660 621124 776405 1086967 1552810 2173934 3105620 4347868 5434835 10869670 21739340
Sum of all divisors σ(n): 53256000
Sum of proper divisors (its aliquot sum) s(n): 31516660
21739340 is an abundant number, because the sum of its proper divisors (31516660) is greater than itself. Its abundance is 9777320

Bases of 21739340

Binary: 1010010111011011101001100₂
Hexadecimal: 0x14BB74C
Base-36: CXY6K

Squares and roots of 21739340

21739340 squared (21739340²) is 472598903635600
21739340 cubed (21739340³) is 10273988249761544504000
The square root of 21739340 is 4662.5465145131
The cube root of 21739340 is 279.0928978125

Scales and comparisons

How big is 21739340?

21,739,340 seconds is equal to 35 weeks, 6 days, 14 hours, 42 minutes, 20 seconds.
To count from 1 to 21,739,340 would take you about six 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 21739340 cubic inches would be around 23.3 feet tall.

Recreational maths with 21739340

21739340 backwards is 04393712
The number of decimal digits it has is: 8
The sum of 21739340's digits is 29
More coming soon!

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The information we have on file for 21739340 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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