18420025

18,420,025 is an odd composite number composed of four prime numbers multiplied together.

What does the number 18420025 look like?

This visualization shows the relationship between its 4 prime factors (large circles) and 36 divisors.

18420025 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of thirty-six divisors.

Prime factorization of 18420025:

5² × 13 × 19² × 157

(5 × 5 × 13 × 19 × 19 × 157)

See below for interesting mathematical facts about the number 18420025 from the Numbermatics database.

Names of 18420025

Cardinal: 18420025 can be written as Eighteen million, four hundred twenty thousand and twenty-five.

Scientific notation

Scientific notation: 1.8420025 × 10⁷

Factors of 18420025

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 6
Sum of prime factors: 194

Divisors of 18420025

Number of divisors d(n): 36
Complete list of divisors:
1 5 13 19 25 65 95 157 247 325 361 475 785 1235 1805 2041 2983 3925 4693 6175 9025 10205 14915 23465 38779 51025 56677 74575 117325 193895 283385 736801 969475 1416925 3684005 18420025
Sum of all divisors σ(n): 26125932
Sum of proper divisors (its aliquot sum) s(n): 7705907
18420025 is a deficient number, because the sum of its proper divisors (7705907) is less than itself. Its deficiency is 10714118

Bases of 18420025

Binary: 1000110010001000100111001₂
Hexadecimal: 0x1191139
Base-36: AYSZD

Squares and roots of 18420025

18420025 squared (18420025²) is 339297321000625
18420025 cubed (18420025³) is 6249865135264537515625
The square root of 18420025 is 4291.8556592691
The cube root of 18420025 is 264.0969618201

Scales and comparisons

How big is 18420025?

18,420,025 seconds is equal to 30 weeks, 3 days, 4 hours, 40 minutes, 25 seconds.
To count from 1 to 18,420,025 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 18420025 cubic inches would be around 22 feet tall.

Recreational maths with 18420025

18420025 backwards is 52002481
The number of decimal digits it has is: 8
The sum of 18420025's digits is 22
More coming soon!

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The information we have on file for 18420025 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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