28408900
28,408,900 is an even composite number composed of four prime numbers multiplied together.
28408900 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-one divisors.
Prime factorization of 28408900:
22 × 52 × 132 × 412
(2 × 2 × 5 × 5 × 13 × 13 × 41 × 41)See below for interesting mathematical facts about the number 28408900 from the Numbermatics database.
Names of 28408900
- Cardinal: 28408900 can be written as Twenty-eight million, four hundred eight thousand, nine hundred.
Scientific notation
- Scientific notation: 2.84089 × 107
Factors of 28408900
Divisors of 28408900
- Number of divisors d(n): 81
-
Complete list of divisors:
1 2 4 5 10 13 20 25 26 41 50 52 65 82 100 130 164 169 205 260 325 338 410 533 650 676 820 845 1025 1066 1300 1681 1690 2050 2132 2665 3362 3380 4100 4225 5330 6724 6929 8405 8450 10660 13325 13858 16810 16900 21853 26650 27716 33620 34645 42025 43706 53300 69290 84050 87412 109265 138580 168100 173225 218530 284089 346450 437060 546325 568178 692900 1092650 1136356 1420445 2185300 2840890 5681780 7102225 14204450 28408900
- Sum of all divisors σ(n): 68422053
- Sum of proper divisors (its aliquot sum) s(n): 40013153
- 28408900 is an abundant number, because the sum of its proper divisors (40013153) is greater than itself. Its abundance is 11604253
Bases of 28408900
- Binary: 11011000101111100010001002
- Hexadecimal: 0x1B17C44
- Base-36: GWWG4
Squares and roots of 28408900
- 28408900 squared (284089002) is 807065599210000
- 28408900 cubed (284089003) is 22927845901396969000000
-
28408900 is a
perfect square number . Itssquare root is 5330 -
The
cube root of 28408900 is 305.1299276235
Scales and comparisons
How big is 28408900?- 28,408,900 seconds is equal to 46 weeks, 6 days, 19 hours, 21 minutes, 40 seconds.
-
To count from 1 to 28,408,900 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 28408900 cubic inches would be around 25.4 feet tall.
Recreational maths with 28408900
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The information we have on file for 28408900 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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