28867215

28,867,215 is an odd composite number composed of five prime numbers multiplied together.

What does the number 28867215 look like?

This visualization shows the relationship between its 5 prime factors (large circles) and 32 divisors.

28867215 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 28867215:

3 × 5 × 13 × 37 × 4001

See below for interesting mathematical facts about the number 28867215 from the Numbermatics database.

Names of 28867215

Cardinal: 28867215 can be written as Twenty-eight million, eight hundred sixty-seven thousand, two hundred fifteen.

Scientific notation

Scientific notation: 2.8867215 × 10⁷

Factors of 28867215

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 4059

Divisors of 28867215

Number of divisors d(n): 32
Complete list of divisors:
1 3 5 13 15 37 39 65 111 185 195 481 555 1443 2405 4001 7215 12003 20005 52013 60015 148037 156039 260065 444111 740185 780195 1924481 2220555 5773443 9622405 28867215
Sum of all divisors σ(n): 51097536
Sum of proper divisors (its aliquot sum) s(n): 22230321
28867215 is a deficient number, because the sum of its proper divisors (22230321) is less than itself. Its deficiency is 6636894

Bases of 28867215

Binary: 1101110000111101010001111₂
Hexadecimal: 0x1B87A8F
Base-36: H6Q33

Squares and roots of 28867215

28867215 squared (28867215²) is 833316101856225
28867215 cubed (28867215³) is 24055515075245546163375
The square root of 28867215 is 5372.8218842617
The cube root of 28867215 is 306.7620482815

Scales and comparisons

How big is 28867215?

28,867,215 seconds is equal to 47 weeks, 5 days, 2 hours, 40 minutes, 15 seconds.
To count from 1 to 28,867,215 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 28867215 cubic inches would be around 25.6 feet tall.

Recreational maths with 28867215

28867215 backwards is 51276882
28867215 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 28867215's digits is 39
More coming soon!

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The information we have on file for 28867215 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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