138428784
138,428,784 is an even composite number composed of four prime numbers multiplied together.
138428784 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 138428784:
24 × 33 × 13 × 1572
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 13 × 157 × 157)See below for interesting mathematical facts about the number 138428784 from the Numbermatics database.
Names of 138428784
- Cardinal: 138428784 can be written as One hundred thirty-eight million, four hundred twenty-eight thousand, seven hundred eighty-four.
Scientific notation
- Scientific notation: 1.38428784 × 108
Factors of 138428784
Divisors of 138428784
- Number of divisors d(n): 120
-
Complete list of divisors:
1 2 3 4 6 8 9 12 13 16 18 24 26 27 36 39 48 52 54 72 78 104 108 117 144 156 157 208 216 234 312 314 351 432 468 471 624 628 702 936 942 1256 1404 1413 1872 1884 2041 2512 2808 2826 3768 4082 4239 5616 5652 6123 7536 8164 8478 11304 12246 16328 16956 18369 22608 24492 24649 32656 33912 36738 48984 49298 55107 67824 73476 73947 97968 98596 110214 146952 147894 197192 220428 221841 293904 295788 320437 394384 440856 443682 591576 640874 665523 881712 887364 961311 1183152 1281748 1331046 1774728 1922622 2563496 2662092 2883933 3549456 3845244 5126992 5324184 5767866 7690488 8651799 10648368 11535732 15380976 17303598 23071464 34607196 46142928 69214392 138428784
- Sum of all divisors σ(n): 430649520
- Sum of proper divisors (its aliquot sum) s(n): 292220736
- 138428784 is an abundant number, because the sum of its proper divisors (292220736) is greater than itself. Its abundance is 153791952
Bases of 138428784
- Binary: 10000100000001000001011100002
- Hexadecimal: 0x8404170
- Base-36: 2AF0C0
Squares and roots of 138428784
- 138428784 squared (1384287842) is 19162528239718656
- 138428784 cubed (1384287843) is 2652645482589914052194304
-
The
square root of 138428784 is 11765.5762289825 -
The
cube root of 138428784 is 517.2995905357
Scales and comparisons
How big is 138428784?- 138,428,784 seconds is equal to 4 years, 20 weeks, 6 days, 4 hours, 26 minutes, 24 seconds.
-
To count from 1 to 138,428,784 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 138428784 cubic inches would be around 43.1 feet tall.
Recreational maths with 138428784
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The information we have on file for 138428784 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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