28992720
28,992,720 is an even composite number composed of five prime numbers multiplied together.
28992720 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 28992720:
24 × 3 × 5 × 107 × 1129
(2 × 2 × 2 × 2 × 3 × 5 × 107 × 1129)See below for interesting mathematical facts about the number 28992720 from the Numbermatics database.
Names of 28992720
- Cardinal: 28992720 can be written as Twenty-eight million, nine hundred ninety-two thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.899272 × 107
Factors of 28992720
Divisors of 28992720
- Number of divisors d(n): 80
-
Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 107 120 214 240 321 428 535 642 856 1070 1129 1284 1605 1712 2140 2258 2568 3210 3387 4280 4516 5136 5645 6420 6774 8560 9032 11290 12840 13548 16935 18064 22580 25680 27096 33870 45160 54192 67740 90320 120803 135480 241606 270960 362409 483212 604015 724818 966424 1208030 1449636 1812045 1932848 2416060 2899272 3624090 4832120 5798544 7248180 9664240 14496360 28992720
- Sum of all divisors σ(n): 90797760
- Sum of proper divisors (its aliquot sum) s(n): 61805040
- 28992720 is an abundant number, because the sum of its proper divisors (61805040) is greater than itself. Its abundance is 32812320
Bases of 28992720
- Binary: 11011101001100100110100002
- Hexadecimal: 0x1BA64D0
- Base-36: H9EXC
Squares and roots of 28992720
- 28992720 squared (289927202) is 840577812998400
- 28992720 cubed (289927203) is 24370637170474971648000
-
The
square root of 28992720 is 5384.4888336777 -
The
cube root of 28992720 is 307.2059718349
Scales and comparisons
How big is 28992720?- 28,992,720 seconds is equal to 47 weeks, 6 days, 13 hours, 32 minutes.
-
To count from 1 to 28,992,720 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 28992720 cubic inches would be around 25.6 feet tall.
Recreational maths with 28992720
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The information we have on file for 28992720 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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