1428889

1,428,889 is an odd composite number composed of three prime numbers multiplied together.

What does the number 1428889 look like?

This visualization shows the relationship between its 3 prime factors (large circles) and 18 divisors.

1428889 is an odd composite number. It is composed of three distinct prime numbers multiplied together. It has a total of eighteen divisors.

Prime factorization of 1428889:

7² × 11² × 241

(7 × 7 × 11 × 11 × 241)

See below for interesting mathematical facts about the number 1428889 from the Numbermatics database.

Names of 1428889

Cardinal: 1428889 can be written as One million, four hundred twenty-eight thousand, eight hundred eighty-nine.

Scientific notation

Scientific notation: 1.428889 × 10⁶

Factors of 1428889

Number of distinct prime factors ω(n): 3
Total number of prime factors Ω(n): 5
Sum of prime factors: 259

Divisors of 1428889

Number of divisors d(n): 18
Complete list of divisors:
1 7 11 49 77 121 241 539 847 1687 2651 5929 11809 18557 29161 129899 204127 1428889
Sum of all divisors σ(n): 1834602
Sum of proper divisors (its aliquot sum) s(n): 405713
1428889 is a deficient number, because the sum of its proper divisors (405713) is less than itself. Its deficiency is 1023176

Bases of 1428889

Binary: 101011100110110011001₂
Hexadecimal: 0x15CD99
Base-36: UMJD

Squares and roots of 1428889

1428889 squared (1428889²) is 2041723774321
1428889 cubed (1428889³) is 2917396642165759369
The square root of 1428889 is 1195.3614516121
The cube root of 1428889 is 112.6331329229

Scales and comparisons

How big is 1428889?

1,428,889 seconds is equal to 2 weeks, 2 days, 12 hours, 54 minutes, 49 seconds.
To count from 1 to 1,428,889 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 1428889 cubic inches would be around 9.4 feet tall.

Recreational maths with 1428889

1428889 backwards is 9888241
The number of decimal digits it has is: 7
The sum of 1428889's digits is 40
More coming soon!

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The information we have on file for 1428889 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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