129728960
129,728,960 is an even composite number composed of four prime numbers multiplied together.
129728960 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty-four divisors.
Prime factorization of 129728960:
26 × 5 × 192 × 1123
(2 × 2 × 2 × 2 × 2 × 2 × 5 × 19 × 19 × 1123)See below for interesting mathematical facts about the number 129728960 from the Numbermatics database.
Names of 129728960
- Cardinal: 129728960 can be written as One hundred twenty-nine million, seven hundred twenty-eight thousand, nine hundred sixty.
Scientific notation
- Scientific notation: 1.2972896 × 108
Factors of 129728960
Divisors of 129728960
- Number of divisors d(n): 84
-
Complete list of divisors:
1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 152 160 190 304 320 361 380 608 722 760 1123 1216 1444 1520 1805 2246 2888 3040 3610 4492 5615 5776 6080 7220 8984 11230 11552 14440 17968 21337 22460 23104 28880 35936 42674 44920 57760 71872 85348 89840 106685 115520 170696 179680 213370 341392 359360 405403 426740 682784 810806 853480 1365568 1621612 1706960 2027015 3243224 3413920 4054030 6486448 6827840 8108060 12972896 16216120 25945792 32432240 64864480 129728960
- Sum of all divisors σ(n): 326321928
- Sum of proper divisors (its aliquot sum) s(n): 196592968
- 129728960 is an abundant number, because the sum of its proper divisors (196592968) is greater than itself. Its abundance is 66864008
Bases of 129728960
- Binary: 1111011101110000001110000002
- Hexadecimal: 0x7BB81C0
- Base-36: 258JI8
Squares and roots of 129728960
- 129728960 squared (1297289602) is 16829603062681600
- 129728960 cubed (1297289603) is 2183286902534498779136000
-
The
square root of 129728960 is 11389.8621589553 -
The
cube root of 129728960 is 506.2273970501
Scales and comparisons
How big is 129728960?- 129,728,960 seconds is equal to 4 years, 6 weeks, 3 days, 11 hours, 49 minutes, 20 seconds.
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To count from 1 to 129,728,960 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 129728960 cubic inches would be around 42.2 feet tall.
Recreational maths with 129728960
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The information we have on file for 129728960 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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