21316220

21,316,220 is an even composite number composed of four prime numbers multiplied together.

What does the number 21316220 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 24 divisors.

21316220 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 21316220:

2² × 5 × 31 × 34381

(2 × 2 × 5 × 31 × 34381)

See below for interesting mathematical facts about the number 21316220 from the Numbermatics database.

Names of 21316220

Cardinal: 21316220 can be written as Twenty-one million, three hundred sixteen thousand, two hundred twenty.

Scientific notation

Scientific notation: 2.131622 × 10⁷

Factors of 21316220

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 34419

Divisors of 21316220

Number of divisors d(n): 24
Complete list of divisors:
1 2 4 5 10 20 31 62 124 155 310 620 34381 68762 137524 171905 343810 687620 1065811 2131622 4263244 5329055 10658110 21316220
Sum of all divisors σ(n): 46209408
Sum of proper divisors (its aliquot sum) s(n): 24893188
21316220 is an abundant number, because the sum of its proper divisors (24893188) is greater than itself. Its abundance is 3576968

Bases of 21316220

Binary: 1010001010100001001111100₂
Hexadecimal: 0x145427C
Base-36: COVP8

Squares and roots of 21316220

21316220 squared (21316220²) is 454381235088400
21316220 cubed (21316220³) is 9685690371016053848000
The square root of 21316220 is 4616.9492091639
The cube root of 21316220 is 277.2703291347

Scales and comparisons

How big is 21316220?

21,316,220 seconds is equal to 35 weeks, 1 day, 17 hours, 10 minutes, 20 seconds.
To count from 1 to 21,316,220 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 21316220 cubic inches would be around 23.1 feet tall.

Recreational maths with 21316220

21316220 backwards is 02261312
The number of decimal digits it has is: 8
The sum of 21316220's digits is 17
More coming soon!

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The information we have on file for 21316220 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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