129388428
129,388,428 is an even composite number composed of five prime numbers multiplied together.
129388428 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 129388428:
22 × 34 × 132 × 17 × 139
(2 × 2 × 3 × 3 × 3 × 3 × 13 × 13 × 17 × 139)See below for interesting mathematical facts about the number 129388428 from the Numbermatics database.
Names of 129388428
- Cardinal: 129388428 can be written as One hundred twenty-nine million, three hundred eighty-eight thousand, four hundred twenty-eight.
Scientific notation
- Scientific notation: 1.29388428 × 108
Factors of 129388428
Divisors of 129388428
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 6 9 12 13 17 18 26 27 34 36 39 51 52 54 68 78 81 102 108 117 139 153 156 162 169 204 221 234 278 306 324 338 351 417 442 459 468 507 556 612 663 676 702 834 884 918 1014 1053 1251 1326 1377 1404 1521 1668 1807 1836 1989 2028 2106 2363 2502 2652 2754 2873 3042 3614 3753 3978 4212 4563 4726 5004 5421 5508 5746 5967 6084 7089 7228 7506 7956 8619 9126 9452 10842 11259 11492 11934 13689 14178 15012 16263 17238 17901 18252 21267 21684 22518 23491 23868 25857 27378 28356 30719 32526 34476 35802 42534 45036 46982 48789 51714 54756 61438 63801 65052 70473 71604 77571 85068 92157 93964 97578 103428 122876 127602 140946 146367 155142 184314 191403 195156 211419 232713 255204 276471 281892 292734 310284 368628 382806 399347 422838 465426 552942 585468 634257 765612 798694 829413 845676 930852 1105884 1198041 1268514 1597388 1658826 1902771 2396082 2488239 2537028 3317652 3594123 3805542 4792164 4976478 7188246 7611084 9952956 10782369 14376492 21564738 32347107 43129476 64694214 129388428
- Sum of all divisors σ(n): 390602520
- Sum of proper divisors (its aliquot sum) s(n): 261214092
- 129388428 is an abundant number, because the sum of its proper divisors (261214092) is greater than itself. Its abundance is 131825664
Bases of 129388428
- Binary: 1111011011001001111100011002
- Hexadecimal: 0x7B64F8C
- Base-36: 2518R0
Squares and roots of 129388428
- 129388428 squared (1293884282) is 16741365300311184
- 129388428 cubed (1293884283) is 2166138938781012008578752
-
The
square root of 129388428 is 11374.9034281613 -
The
cube root of 129388428 is 505.7840684267
Scales and comparisons
How big is 129388428?- 129,388,428 seconds is equal to 4 years, 5 weeks, 6 days, 13 hours, 13 minutes, 48 seconds.
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To count from 1 to 129,388,428 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 129388428 cubic inches would be around 42.1 feet tall.
Recreational maths with 129388428
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The information we have on file for 129388428 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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