28290

28,290 is an even composite number composed of five prime numbers multiplied together.

What does the number 28290 look like?

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

28290 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of thirty-two divisors.

Prime factorization of 28290:

2 × 3 × 5 × 23 × 41

See below for interesting mathematical facts about the number 28290 from the Numbermatics database.

Names of 28290

• Cardinal: 28290 can be written as Twenty-eight thousand, two hundred ninety.

Scientific notation

• Scientific notation: 2.829 × 104

Factors of 28290

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 74

Divisors of 28290

• Number of divisors d(n): 32
• Complete list of divisors:
• Sum of all divisors σ(n): 72576
• Sum of proper divisors (its aliquot sum) s(n): 44286
• 28290 is an abundant number, because the sum of its proper divisors (44286) is greater than itself. Its abundance is 15996

Bases of 28290

• Binary: 1101110100000102
• Base-36: LTU

Squares and roots of 28290

• 28290 squared (282902) is 800324100
• 28290 cubed (282903) is 22641168789000
• The square root of 28290 is 168.1963138717
• The cube root of 28290 is 30.4703644771

Scales and comparisons

How big is 28290?
• 28,290 seconds is equal to 7 hours, 51 minutes, 30 seconds.
• To count from 1 to 28,290 would take you about seven hours.

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 28290 cubic inches would be around 2.5 feet tall.

Recreational maths with 28290

• 28290 backwards is 09282
• The number of decimal digits it has is: 5
• The sum of 28290's digits is 21
• More coming soon!

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