28457690

28,457,690 is an even composite number composed of five prime numbers multiplied together.

What does the number 28457690 look like?

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

28457690 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 28457690:

2 × 5 × 31 × 41 × 2239

See below for interesting mathematical facts about the number 28457690 from the Numbermatics database.

Names of 28457690

Cardinal: 28457690 can be written as Twenty-eight million, four hundred fifty-seven thousand, six hundred ninety.

Scientific notation

Scientific notation: 2.845769 × 10⁷

Factors of 28457690

Number of distinct prime factors ω(n): 5
Total number of prime factors Ω(n): 5
Sum of prime factors: 2318

Divisors of 28457690

Number of divisors d(n): 32
Complete list of divisors:
1 2 5 10 31 41 62 82 155 205 310 410 1271 2239 2542 4478 6355 11195 12710 22390 69409 91799 138818 183598 347045 458995 694090 917990 2845769 5691538 14228845 28457690
Sum of all divisors σ(n): 54190080
Sum of proper divisors (its aliquot sum) s(n): 25732390
28457690 is a deficient number, because the sum of its proper divisors (25732390) is less than itself. Its deficiency is 2725300

Bases of 28457690

Binary: 1101100100011101011011010₂
Hexadecimal: 0x1B23ADA
Base-36: GXY3E

Squares and roots of 28457690

28457690 squared (28457690²) is 809840120136100
28457690 cubed (28457690³) is 23046179088395891609000
The square root of 28457690 is 5334.5749596383
The cube root of 28457690 is 305.3045064199

Scales and comparisons

How big is 28457690?

28,457,690 seconds is equal to 47 weeks, 8 hours, 54 minutes, 50 seconds.
To count from 1 to 28,457,690 would take you about eighteen 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 28457690 cubic inches would be around 25.4 feet tall.

Recreational maths with 28457690

28457690 backwards is 09675482
28457690 is a Harshad number.
The number of decimal digits it has is: 8
The sum of 28457690's digits is 41
More coming soon!

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The information we have on file for 28457690 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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