129742920
129,742,920 is an even composite number composed of five prime numbers multiplied together.
What does the number 129742920 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 96 divisors.
129742920 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 129742920:
23 × 32 × 5 × 103 × 3499
(2 × 2 × 2 × 3 × 3 × 5 × 103 × 3499)See below for interesting mathematical facts about the number 129742920 from the Numbermatics database.
Names of 129742920
- Cardinal: 129742920 can be written as One hundred twenty-nine million, seven hundred forty-two thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.2974292 × 108
Factors of 129742920
Divisors of 129742920
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 103 120 180 206 309 360 412 515 618 824 927 1030 1236 1545 1854 2060 2472 3090 3499 3708 4120 4635 6180 6998 7416 9270 10497 12360 13996 17495 18540 20994 27992 31491 34990 37080 41988 52485 62982 69980 83976 104970 125964 139960 157455 209940 251928 314910 360397 419880 629820 720794 1081191 1259640 1441588 1801985 2162382 2883176 3243573 3603970 4324764 5405955 6487146 7207940 8649528 10811910 12974292 14415880 16217865 21623820 25948584 32435730 43247640 64871460 129742920
- Sum of all divisors σ(n): 425880000
- Sum of proper divisors (its aliquot sum) s(n): 296137080
- 129742920 is an abundant number, because the sum of its proper divisors (296137080) is greater than itself. Its abundance is 166394160
Bases of 129742920
- Binary: 1111011101110111000010010002
- Hexadecimal: 0x7BBB848
- Base-36: 258UA0
Squares and roots of 129742920
- 129742920 squared (1297429202) is 16833225290126400
- 129742920 cubed (1297429203) is 2183991802158846305088000
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The
square root of 129742920 is 11390.4749681477 -
The
cube root of 129742920 is 506.2455546021
Scales and comparisons
How big is 129742920?- 129,742,920 seconds is equal to 4 years, 6 weeks, 3 days, 15 hours, 42 minutes.
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To count from 1 to 129,742,920 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 129742920 cubic inches would be around 42.2 feet tall.
Recreational maths with 129742920
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The information we have on file for 129742920 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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