129828720
129,828,720 is an even composite number composed of five prime numbers multiplied together.
129828720 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 129828720:
24 × 3 × 5 × 7 × 77279
(2 × 2 × 2 × 2 × 3 × 5 × 7 × 77279)See below for interesting mathematical facts about the number 129828720 from the Numbermatics database.
Names of 129828720
- Cardinal: 129828720 can be written as One hundred twenty-nine million, eight hundred twenty-eight thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.2982872 × 108
Factors of 129828720
Divisors of 129828720
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 77279 154558 231837 309116 386395 463674 540953 618232 772790 927348 1081906 1159185 1236464 1545580 1622859 1854696 2163812 2318370 2704765 3091160 3245718 3709392 4327624 4636740 5409530 6182320 6491436 8114295 8655248 9273480 10819060 12982872 16228590 18546960 21638120 25965744 32457180 43276240 64914360 129828720
- Sum of all divisors σ(n): 459970560
- Sum of proper divisors (its aliquot sum) s(n): 330141840
- 129828720 is an abundant number, because the sum of its proper divisors (330141840) is greater than itself. Its abundance is 200313120
Bases of 129828720
- Binary: 1111011110100000111011100002
- Hexadecimal: 0x7BD0770
- Base-36: 25AOHC
Squares and roots of 129828720
- 129828720 squared (1298287202) is 16855496536838400
- 129828720 cubed (1298287203) is 2188327540342162318848000
-
The
square root of 129828720 is 11394.2406504339 -
The
cube root of 129828720 is 506.3571247165
Scales and comparisons
How big is 129828720?- 129,828,720 seconds is equal to 4 years, 6 weeks, 4 days, 15 hours, 32 minutes.
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To count from 1 to 129,828,720 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 129828720 cubic inches would be around 42.2 feet tall.
Recreational maths with 129828720
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The information we have on file for 129828720 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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