28949869

28,949,869 is an odd composite number composed of two prime numbers multiplied together.

What does the number 28949869 look like?

This visualization shows the relationship between its 2 prime factors (large circles) and 8 divisors.

28949869 is an odd composite number. It is composed of two distinct prime numbers multiplied together. It has a total of eight divisors.

Prime factorization of 28949869:

13³ × 13177

(13 × 13 × 13 × 13177)

See below for interesting mathematical facts about the number 28949869 from the Numbermatics database.

Names of 28949869

Cardinal: 28949869 can be written as Twenty-eight million, nine hundred forty-nine thousand, eight hundred sixty-nine.

Scientific notation

Scientific notation: 2.8949869 × 10⁷

Factors of 28949869

Number of distinct prime factors ω(n): 2
Total number of prime factors Ω(n): 4
Sum of prime factors: 13190

Divisors of 28949869

Number of divisors d(n): 8
Complete list of divisors:
1 13 169 2197 13177 171301 2226913 28949869
Sum of all divisors σ(n): 31363640
Sum of proper divisors (its aliquot sum) s(n): 2413771
28949869 is a deficient number, because the sum of its proper divisors (2413771) is less than itself. Its deficiency is 26536098

Bases of 28949869

Binary: 1101110011011110101101101₂
Hexadecimal: 0x1B9BD6D
Base-36: H8HV1

Squares and roots of 28949869

28949869 squared (28949869²) is 838094915117161
28949869 cubed (28949869³) is 24262738002207930601909
The square root of 28949869 is 5380.5082473685
The cube root of 28949869 is 307.0545479153

Scales and comparisons

How big is 28949869?

28,949,869 seconds is equal to 47 weeks, 6 days, 1 hour, 37 minutes, 49 seconds.
To count from 1 to 28,949,869 would take you about nineteen 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 28949869 cubic inches would be around 25.6 feet tall.

Recreational maths with 28949869

28949869 backwards is 96894982
The number of decimal digits it has is: 8
The sum of 28949869's digits is 55
More coming soon!

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The information we have on file for 28949869 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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