820225

820,225 is an odd composite number composed of four prime numbers multiplied together.

What does the number 820225 look like?

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

820225 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of twenty-four divisors.

Prime factorization of 820225:

5² × 7 × 43 × 109

(5 × 5 × 7 × 43 × 109)

See below for interesting mathematical facts about the number 820225 from the Numbermatics database.

Names of 820225

Cardinal: 820225 can be written as Eight hundred twenty thousand, two hundred twenty-five.

Scientific notation

Scientific notation: 8.20225 × 10⁵

Factors of 820225

Number of distinct prime factors ω(n): 4
Total number of prime factors Ω(n): 5
Sum of prime factors: 164

Divisors of 820225

Number of divisors d(n): 24
Complete list of divisors:
1 5 7 25 35 43 109 175 215 301 545 763 1075 1505 2725 3815 4687 7525 19075 23435 32809 117175 164045 820225
Sum of all divisors σ(n): 1200320
Sum of proper divisors (its aliquot sum) s(n): 380095
820225 is a deficient number, because the sum of its proper divisors (380095) is less than itself. Its deficiency is 440130

Bases of 820225

Binary: 11001000010000000001₂
Hexadecimal: 0xC8401
Base-36: HKW1

Squares and roots of 820225

820225 squared (820225²) is 672769050625
820225 cubed (820225³) is 551821994548890625
The square root of 820225 is 905.6627407593
The cube root of 820225 is 93.6075763341

Scales and comparisons

How big is 820225?

820,225 seconds is equal to 1 week, 2 days, 11 hours, 50 minutes, 25 seconds.
To count from 1 to 820,225 would take you about two 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 820225 cubic inches would be around 7.8 feet tall.

Recreational maths with 820225

820225 backwards is 522028
The number of decimal digits it has is: 6
The sum of 820225's digits is 19
More coming soon!

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The information we have on file for 820225 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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