21055380

21,055,380 is an even composite number composed of five prime numbers multiplied together.

What does the number 21055380 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 48 divisors.

21055380 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.

Prime factorization of 21055380:

2² × 3 × 5 × 43 × 8161

(2 × 2 × 3 × 5 × 43 × 8161)

See below for interesting mathematical facts about the number 21055380 from the Numbermatics database.

Names of 21055380

Cardinal: 21055380 can be written as Twenty-one million, fifty-five thousand, three hundred eighty.

Scientific notation

Scientific notation: 2.105538 × 10⁷

Factors of 21055380

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 6
Sum of prime factors: 8214

Divisors of 21055380

Number of divisors d(n): 48
Complete list of divisors:
1 2 3 4 5 6 10 12 15 20 30 43 60 86 129 172 215 258 430 516 645 860 1290 2580 8161 16322 24483 32644 40805 48966 81610 97932 122415 163220 244830 350923 489660 701846 1052769 1403692 1754615 2105538 3509230 4211076 5263845 7018460 10527690 21055380
Sum of all divisors σ(n): 60333504
Sum of proper divisors (its aliquot sum) s(n): 39278124
21055380 is an abundant number, because the sum of its proper divisors (39278124) is greater than itself. Its abundance is 18222744

Bases of 21055380

Binary: 1010000010100011110010100₂
Hexadecimal: 0x1414794
Base-36: CJAFO

Squares and roots of 21055380

21055380 squared (21055380²) is 443329026944400
21055380 cubed (21055380³) is 9334461127344580872000
The square root of 21055380 is 4588.6141698775
The cube root of 21055380 is 276.1347273339

Scales and comparisons

How big is 21055380?

21,055,380 seconds is equal to 34 weeks, 5 days, 16 hours, 43 minutes.
To count from 1 to 21,055,380 would take you about thirteen 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 21055380 cubic inches would be around 23 feet tall.

Recreational maths with 21055380

21055380 backwards is 08355012
The number of decimal digits it has is: 8
The sum of 21055380's digits is 24
More coming soon!

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The information we have on file for 21055380 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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