1801855

1,801,855 is an odd composite number composed of three prime numbers multiplied together.

What does the number 1801855 look like?

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

1801855 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 1801855:

5 × 11 × 181²

(5 × 11 × 181 × 181)

See below for interesting mathematical facts about the number 1801855 from the Numbermatics database.

Names of 1801855

Cardinal: 1801855 can be written as One million, eight hundred one thousand, eight hundred fifty-five.

Scientific notation

Scientific notation: 1.801855 × 10⁶

Factors of 1801855

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 4
Sum of prime factors: 197

Divisors of 1801855

Number of divisors d(n): 12
Complete list of divisors:
1 5 11 55 181 905 1991 9955 32761 163805 360371 1801855
Sum of all divisors σ(n): 2371896
Sum of proper divisors (its aliquot sum) s(n): 570041
1801855 is a deficient number, because the sum of its proper divisors (570041) is less than itself. Its deficiency is 1231814

Bases of 1801855

Binary: 110110111111001111111₂
Hexadecimal: 0x1B7E7F
Base-36: 12MBJ

Squares and roots of 1801855

1801855 squared (1801855²) is 3246681441025
1801855 cubed (1801855³) is 5850049187918101375
The square root of 1801855 is 1342.3319261643
The cube root of 1801855 is 121.6858125455

Scales and comparisons

How big is 1801855?

1,801,855 seconds is equal to 2 weeks, 6 days, 20 hours, 30 minutes, 55 seconds.
To count from 1 to 1,801,855 would take you about four 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 1801855 cubic inches would be around 10.1 feet tall.

Recreational maths with 1801855

1801855 backwards is 5581081
The number of decimal digits it has is: 7
The sum of 1801855's digits is 28
More coming soon!

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The information we have on file for 1801855 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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