129428912
129,428,912 is an even composite number composed of five prime numbers multiplied together.
129428912 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 129428912:
24 × 19 × 23 × 107 × 173
(2 × 2 × 2 × 2 × 19 × 23 × 107 × 173)See below for interesting mathematical facts about the number 129428912 from the Numbermatics database.
Names of 129428912
- Cardinal: 129428912 can be written as One hundred twenty-nine million, four hundred twenty-eight thousand, nine hundred twelve.
Scientific notation
- Scientific notation: 1.29428912 × 108
Factors of 129428912
Divisors of 129428912
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 8 16 19 23 38 46 76 92 107 152 173 184 214 304 346 368 428 437 692 856 874 1384 1712 1748 2033 2461 2768 3287 3496 3979 4066 4922 6574 6992 7958 8132 9844 13148 15916 16264 18511 19688 26296 31832 32528 37022 39376 46759 52592 63664 74044 75601 93518 148088 151202 187036 296176 302404 351709 374072 425753 604808 703418 748144 851506 1209616 1406836 1703012 2813672 3406024 5627344 6812048 8089307 16178614 32357228 64714456 129428912
- Sum of all divisors σ(n): 279624960
- Sum of proper divisors (its aliquot sum) s(n): 150196048
- 129428912 is an abundant number, because the sum of its proper divisors (150196048) is greater than itself. Its abundance is 20767136
Bases of 129428912
- Binary: 1111011011011101101101100002
- Hexadecimal: 0x7B6EDB0
- Base-36: 2523ZK
Squares and roots of 129428912
- 129428912 squared (1294289122) is 16751843261503744
- 129428912 cubed (1294289123) is 2168172847330961069846528
-
The
square root of 129428912 is 11376.6828205765 -
The
cube root of 129428912 is 505.8368140685
Scales and comparisons
How big is 129428912?- 129,428,912 seconds is equal to 4 years, 6 weeks, 28 minutes, 32 seconds.
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To count from 1 to 129,428,912 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 129428912 cubic inches would be around 42.2 feet tall.
Recreational maths with 129428912
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The information we have on file for 129428912 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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