1381891

1,381,891 is an odd composite number composed of three prime numbers multiplied together.

What does the number 1381891 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 8 divisors.

1381891 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 1381891:

7 × 43 × 4591

See below for interesting mathematical facts about the number 1381891 from the Numbermatics database.

Names of 1381891

Cardinal: 1381891 can be written as One million, three hundred eighty-one thousand, eight hundred ninety-one.

Scientific notation

Scientific notation: 1.381891 × 10⁶

Factors of 1381891

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 3
Sum of prime factors: 4641

Divisors of 1381891

Number of divisors d(n): 8
Complete list of divisors:
1 7 43 301 4591 32137 197413 1381891
Sum of all divisors σ(n): 1616384
Sum of proper divisors (its aliquot sum) s(n): 234493
1381891 is a deficient number, because the sum of its proper divisors (234493) is less than itself. Its deficiency is 1147398

Bases of 1381891

Binary: 101010001011000000011₂
Hexadecimal: 0x151603
Base-36: TM9V

Squares and roots of 1381891

1381891 squared (1381891²) is 1909622735881
1381891 cubed (1381891³) is 2638890472109330971
The square root of 1381891 is 1175.5385999617
The cube root of 1381891 is 111.3844580557

Scales and comparisons

How big is 1381891?

1,381,891 seconds is equal to 2 weeks, 1 day, 23 hours, 51 minutes, 31 seconds.
To count from 1 to 1,381,891 would take you about three 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 1381891 cubic inches would be around 9.3 feet tall.

Recreational maths with 1381891

1381891 backwards is 1981831
The number of decimal digits it has is: 7
The sum of 1381891's digits is 31
More coming soon!

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The information we have on file for 1381891 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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