18139727872
18,139,727,872 is an even composite number composed of four prime numbers multiplied together.
18139727872 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 18139727872:
211 × 75 × 17 × 31
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 7 × 7 × 7 × 7 × 7 × 17 × 31)See below for interesting mathematical facts about the number 18139727872 from the Numbermatics database.
Names of 18139727872
- Cardinal: 18139727872 can be written as Eighteen billion, one hundred thirty-nine million, seven hundred twenty-seven thousand, eight hundred seventy-two.
Scientific notation
- Scientific notation: 1.8139727872 × 1010
Factors of 18139727872
Divisors of 18139727872
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 7 8 14 16 17 28 31 32 34 49 56 62 64 68 98 112 119 124 128 136 196 217 224 238 248 256 272 343 392 434 448 476 496 512 527 544 686 784 833 868 896 952 992 1024 1054 1088 1372 1519 1568 1666 1736 1792 1904 1984 2048 2108 2176 2401 2744 3038 3136 3332 3472 3584 3689 3808 3968 4216 4352 4802 5488 5831 6076 6272 6664 6944 7168 7378 7616 7936 8432 8704 9604 10633 10976 11662 12152 12544 13328 13888 14336 14756 15232 15872 16807 16864 17408 19208 21266 21952 23324 24304 25088 25823 26656 27776 29512 30464 31744 33614 33728 34816 38416 40817 42532 43904 46648 48608 50176 51646 53312 55552 59024 60928 63488 67228 67456 74431 76832 81634 85064 87808 93296 97216 100352 103292 106624 111104 118048 121856 134456 134912 148862 153664 163268 170128 175616 180761 186592 194432 206584 213248 222208 236096 243712 268912 269824 285719 297724 307328 326536 340256 351232 361522 373184 388864 413168 426496 444416 472192 521017 537824 539648 571438 595448 614656 653072 680512 702464 723044 746368 777728 826336 852992 944384 1042034 1075648 1079296 1142876 1190896 1229312 1265327 1306144 1361024 1446088 1492736 1555456 1652672 1705984 1888768 2084068 2151296 2285752 2381792 2458624 2530654 2612288 2722048 2892176 2985472 3110912 3305344 3777536 4168136 4302592 4571504 4763584 4917248 5061308 5224576 5444096 5784352 5970944 6610688 7555072 8336272 8605184 8857289 9143008 9527168 10122616 10449152 10888192 11568704 11941888 13221376 16672544 17210368 17714578 18286016 19054336 20245232 20898304 21776384 23137408 26442752 33345088 34420736 35429156 36572032 38108672 40490464 41796608 46274816 52885504 66690176 70858312 73144064 76217344 80980928 83593216 92549632 133380352 141716624 146288128 152434688 161961856 185099264 266760704 283433248 292576256 323923712 370198528 533521408 566866496 585152512 647847424 1067042816 1133732992 1295694848 2267465984 2591389696 4534931968 9069863936 18139727872
- Sum of all divisors σ(n): 46249781760
- Sum of proper divisors (its aliquot sum) s(n): 28110053888
- 18139727872 is an abundant number, because the sum of its proper divisors (28110053888) is greater than itself. Its abundance is 9970326016
Bases of 18139727872
- Binary: 100001110010011011001001000000000002
- Hexadecimal: 0x439364800
- Base-36: 8BZXBLS
Squares and roots of 18139727872
- 18139727872 squared (181397278722) is 329049727270213648384
- 18139727872 cubed (181397278723) is 5968872509037492992986052558848
-
The
square root of 18139727872 is 134683.8070148005 -
The
cube root of 18139727872 is 2627.5052302401
Scales and comparisons
How big is 18139727872?- 18,139,727,872 seconds is equal to 576 years, 40 weeks, 6 days, 13 hours, 17 minutes, 52 seconds.
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To count from 1 to 18,139,727,872 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 18139727872 cubic inches would be around 219 feet tall.
Recreational maths with 18139727872
- 18139727872 backwards is 27872793181
- The number of decimal digits it has is: 11
- The sum of 18139727872's digits is 55
- More coming soon!
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