129268728
129,268,728 is an even composite number composed of five prime numbers multiplied together.
129268728 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 129268728:
23 × 32 × 67 × 127 × 211
(2 × 2 × 2 × 3 × 3 × 67 × 127 × 211)See below for interesting mathematical facts about the number 129268728 from the Numbermatics database.
Names of 129268728
- Cardinal: 129268728 can be written as One hundred twenty-nine million, two hundred sixty-eight thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.29268728 × 108
Factors of 129268728
Divisors of 129268728
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 6 8 9 12 18 24 36 67 72 127 134 201 211 254 268 381 402 422 508 536 603 633 762 804 844 1016 1143 1206 1266 1524 1608 1688 1899 2286 2412 2532 3048 3798 4572 4824 5064 7596 8509 9144 14137 15192 17018 25527 26797 28274 34036 42411 51054 53594 56548 68072 76581 80391 84822 102108 107188 113096 127233 153162 160782 169644 204216 214376 241173 254466 306324 321564 339288 482346 508932 612648 643128 964692 1017864 1795399 1929384 3590798 5386197 7181596 10772394 14363192 16158591 21544788 32317182 43089576 64634364 129268728
- Sum of all divisors σ(n): 359823360
- Sum of proper divisors (its aliquot sum) s(n): 230554632
- 129268728 is an abundant number, because the sum of its proper divisors (230554632) is greater than itself. Its abundance is 101285904
Bases of 129268728
- Binary: 1111011010001111011111110002
- Hexadecimal: 0x7B47BF8
- Base-36: 24YOE0
Squares and roots of 129268728
- 129268728 squared (1292687282) is 16710404038737984
- 129268728 cubed (1292687283) is 2160132674453721916964352
-
The
square root of 129268728 is 11369.6406275661 -
The
cube root of 129268728 is 505.6280497543
Scales and comparisons
How big is 129268728?- 129,268,728 seconds is equal to 4 years, 5 weeks, 5 days, 3 hours, 58 minutes, 48 seconds.
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To count from 1 to 129,268,728 would take you about six years!
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 129268728 cubic inches would be around 42.1 feet tall.
Recreational maths with 129268728
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The information we have on file for 129268728 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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