138565728
138,565,728 is an even composite number composed of four prime numbers multiplied together.
138565728 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred eighty divisors.
Prime factorization of 138565728:
25 × 34 × 72 × 1091
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 7 × 7 × 1091)See below for interesting mathematical facts about the number 138565728 from the Numbermatics database.
Names of 138565728
- Cardinal: 138565728 can be written as One hundred thirty-eight million, five hundred sixty-five thousand, seven hundred twenty-eight.
Scientific notation
- Scientific notation: 1.38565728 × 108
Factors of 138565728
Divisors of 138565728
- Number of divisors d(n): 180
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 49 54 56 63 72 81 84 96 98 108 112 126 144 147 162 168 189 196 216 224 252 288 294 324 336 378 392 432 441 504 567 588 648 672 756 784 864 882 1008 1091 1134 1176 1296 1323 1512 1568 1764 2016 2182 2268 2352 2592 2646 3024 3273 3528 3969 4364 4536 4704 5292 6048 6546 7056 7637 7938 8728 9072 9819 10584 13092 14112 15274 15876 17456 18144 19638 21168 22911 26184 29457 30548 31752 34912 39276 42336 45822 52368 53459 58914 61096 63504 68733 78552 88371 91644 104736 106918 117828 122192 127008 137466 157104 160377 176742 183288 206199 213836 235656 244384 274932 314208 320754 353484 366576 412398 427672 471312 481131 549864 618597 641508 706968 733152 824796 855344 942624 962262 1099728 1237194 1283016 1413936 1443393 1649592 1710688 1924524 2199456 2474388 2566032 2827872 2886786 3299184 3849048 4330179 4948776 5132064 5773572 6598368 7698096 8660358 9897552 11547144 15396192 17320716 19795104 23094288 34641432 46188576 69282864 138565728
- Sum of all divisors σ(n): 474486012
- Sum of proper divisors (its aliquot sum) s(n): 335920284
- 138565728 is an abundant number, because the sum of its proper divisors (335920284) is greater than itself. Its abundance is 197354556
Bases of 138565728
- Binary: 10000100001001011000011000002
- Hexadecimal: 0x8425860
- Base-36: 2AHY00
Squares and roots of 138565728
- 138565728 squared (1385657282) is 19200460976169984
- 138565728 cubed (1385657283) is 2660525853098584484708352
-
The
square root of 138565728 is 11771.3944798397 -
The
cube root of 138565728 is 517.4701179975
Scales and comparisons
How big is 138565728?- 138,565,728 seconds is equal to 4 years, 21 weeks, 18 hours, 28 minutes, 48 seconds.
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To count from 1 to 138,565,728 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 138565728 cubic inches would be around 43.1 feet tall.
Recreational maths with 138565728
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The information we have on file for 138565728 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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