129409728
129,409,728 is an even composite number composed of five prime numbers multiplied together.
129409728 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 129409728:
26 × 3 × 7 × 73 × 1319
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 7 × 73 × 1319)See below for interesting mathematical facts about the number 129409728 from the Numbermatics database.
Names of 129409728
- Cardinal: 129409728 can be written as One hundred twenty-nine million, four hundred nine thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.29409728 × 108
Factors of 129409728
Divisors of 129409728
- Number of divisors d(n): 112
-
Complete list of divisors:
1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 73 84 96 112 146 168 192 219 224 292 336 438 448 511 584 672 876 1022 1168 1319 1344 1533 1752 2044 2336 2638 3066 3504 3957 4088 4672 5276 6132 7008 7914 8176 9233 10552 12264 14016 15828 16352 18466 21104 24528 27699 31656 32704 36932 42208 49056 55398 63312 73864 84416 96287 98112 110796 126624 147728 192574 221592 253248 288861 295456 385148 443184 577722 590912 674009 770296 886368 1155444 1348018 1540592 1772736 2022027 2310888 2696036 3081184 4044054 4621776 5392072 6162368 8088108 9243552 10784144 16176216 18487104 21568288 32352432 43136576 64704864 129409728
- Sum of all divisors σ(n): 396971520
- Sum of proper divisors (its aliquot sum) s(n): 267561792
- 129409728 is an abundant number, because the sum of its proper divisors (267561792) is greater than itself. Its abundance is 138152064
Bases of 129409728
- Binary: 1111011011010100010110000002
- Hexadecimal: 0x7B6A2C0
- Base-36: 251P6O
Squares and roots of 129409728
- 129409728 squared (1294097282) is 16746877701033984
- 129409728 cubed (1294097283) is 2167208888140073188196352
-
The
square root of 129409728 is 11375.8396613175 -
The
cube root of 129409728 is 505.8118210619
Scales and comparisons
How big is 129409728?- 129,409,728 seconds is equal to 4 years, 5 weeks, 6 days, 19 hours, 8 minutes, 48 seconds.
-
To count from 1 to 129,409,728 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 129409728 cubic inches would be around 42.2 feet tall.
Recreational maths with 129409728
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The information we have on file for 129409728 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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