18201421

18,201,421 is an odd composite number composed of three prime numbers multiplied together.

What does the number 18201421 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 12 divisors.

18201421 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of twelve divisors.

Prime factorization of 18201421:

7 × 67 × 197²

(7 × 67 × 197 × 197)

See below for interesting mathematical facts about the number 18201421 from the Numbermatics database.

Names of 18201421

Cardinal: 18201421 can be written as Eighteen million, two hundred one thousand, four hundred twenty-one.

Scientific notation

Scientific notation: 1.8201421 × 10⁷

Factors of 18201421

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 271

Divisors of 18201421

Number of divisors d(n): 12
Complete list of divisors:
1 7 67 197 469 1379 13199 38809 92393 271663 2600203 18201421
Sum of all divisors σ(n): 21219808
Sum of proper divisors (its aliquot sum) s(n): 3018387
18201421 is a deficient number, because the sum of its proper divisors (3018387) is less than itself. Its deficiency is 15183034

Bases of 18201421

Binary: 1000101011011101101001101₂
Hexadecimal: 0x115BB4D
Base-36: AU4B1

Squares and roots of 18201421

18201421 squared (18201421²) is 331291726419241
18201421 cubed (18201421³) is 6029980186373427941461
The square root of 18201421 is 4266.3123420585
The cube root of 18201421 is 263.0480570665

Scales and comparisons

How big is 18201421?

18,201,421 seconds is equal to 30 weeks, 15 hours, 57 minutes, 1 second.
To count from 1 to 18,201,421 would take you about forty-five weeks!

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 18201421 cubic inches would be around 21.9 feet tall.

Recreational maths with 18201421

18201421 backwards is 12410281
The number of decimal digits it has is: 8
The sum of 18201421's digits is 19
More coming soon!

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The information we have on file for 18201421 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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