18138538880
18,138,538,880 is an even composite number composed of five prime numbers multiplied together.
18138538880 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 18138538880:
27 × 5 × 7 × 112 × 33461
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 11 × 11 × 33461)See below for interesting mathematical facts about the number 18138538880 from the Numbermatics database.
Names of 18138538880
- Cardinal: 18138538880 can be written as Eighteen billion, one hundred thirty-eight million, five hundred thirty-eight thousand, eight hundred eighty.
Scientific notation
- Scientific notation: 1.813853888 × 1010
Factors of 18138538880
Divisors of 18138538880
- Number of divisors d(n): 192
-
Complete list of divisors:
1 2 4 5 7 8 10 11 14 16 20 22 28 32 35 40 44 55 56 64 70 77 80 88 110 112 121 128 140 154 160 176 220 224 242 280 308 320 352 385 440 448 484 560 605 616 640 704 770 847 880 896 968 1120 1210 1232 1408 1540 1694 1760 1936 2240 2420 2464 3080 3388 3520 3872 4235 4480 4840 4928 6160 6776 7040 7744 8470 9680 9856 12320 13552 15488 16940 19360 24640 27104 33461 33880 38720 49280 54208 66922 67760 77440 108416 133844 135520 167305 234227 267688 271040 334610 368071 468454 535376 542080 669220 736142 936908 1070752 1171135 1338440 1472284 1840355 1873816 2141504 2342270 2576497 2676880 2944568 3680710 3747632 4048781 4283008 4684540 5152994 5353760 5889136 7361420 7495264 8097562 9369080 10305988 10707520 11778272 12882485 14722840 14990528 16195124 18738160 20243905 20611976 21415040 23556544 25764970 28341467 29445680 29981056 32390248 37476320 40487810 41223952 47113088 51529940 56682934 58891360 64780496 74952640 80975620 82447904 103059880 113365868 117782720 129560992 141707335 149905280 161951240 164895808 206119760 226731736 235565440 259121984 283414670 323902480 329791616 412239520 453463472 518243968 566829340 647804960 824479040 906926944 1133658680 1295609920 1648958080 1813853888 2267317360 2591219840 3627707776 4534634720 9069269440 18138538880
- Sum of all divisors σ(n): 54473459040
- Sum of proper divisors (its aliquot sum) s(n): 36334920160
- 18138538880 is an abundant number, because the sum of its proper divisors (36334920160) is greater than itself. Its abundance is 18196381280
Bases of 18138538880
- Binary: 100001110010010010000100011100000002
- Hexadecimal: 0x439242380
- Base-36: 8BZ7U68
Squares and roots of 18138538880
- 18138538880 squared (181385388802) is 329006592701271654400
- 18138538880 cubed (181385388803) is 5967698873488340128776323072000
-
The
square root of 18138538880 is 134679.3929300247 -
The
cube root of 18138538880 is 2627.4478212391
Scales and comparisons
How big is 18138538880?- 18,138,538,880 seconds is equal to 576 years, 38 weeks, 6 days, 19 hours, 1 minute, 20 seconds.
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To count from 1 to 18,138,538,880 would take you about one thousand, one hundred fifty-three 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 18138538880 cubic inches would be around 219 feet tall.
Recreational maths with 18138538880
- 18138538880 backwards is 08883583181
- The number of decimal digits it has is: 11
- The sum of 18138538880's digits is 53
- More coming soon!
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The information we have on file for 18138538880 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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