18121366494
18,121,366,494 is an even composite number composed of seven prime numbers multiplied together.
What does the number 18121366494 look like?
This visualization shows the relationship between its 7 prime factors (large circles) and 480 divisors.
18121366494 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 18121366494:
2 × 34 × 72 × 11 × 37 × 71 × 79
(2 × 3 × 3 × 3 × 3 × 7 × 7 × 11 × 37 × 71 × 79)See below for interesting mathematical facts about the number 18121366494 from the Numbermatics database.
Names of 18121366494
- Cardinal: 18121366494 can be written as Eighteen billion, one hundred twenty-one million, three hundred sixty-six thousand, four hundred ninety-four.
Scientific notation
- Scientific notation: 1.8121366494 × 1010
Factors of 18121366494
Divisors of 18121366494
- Number of divisors d(n): 480
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Complete list of divisors:
1 2 3 6 7 9 11 14 18 21 22 27 33 37 42 49 54 63 66 71 74 77 79 81 98 99 111 126 142 147 154 158 162 189 198 213 222 231 237 259 294 297 333 378 407 426 441 462 474 497 518 539 553 567 594 639 666 693 711 777 781 814 869 882 891 994 999 1078 1106 1134 1221 1278 1323 1386 1422 1491 1554 1562 1617 1659 1738 1782 1813 1917 1998 2079 2133 2331 2343 2442 2607 2627 2646 2849 2923 2982 2997 3234 3318 3479 3626 3663 3834 3871 3969 4158 4266 4473 4662 4686 4851 4977 5214 5254 5439 5467 5609 5698 5751 5846 5994 6083 6237 6399 6958 6993 7029 7326 7742 7821 7881 7938 8547 8769 8946 9702 9954 10437 10878 10934 10989 11218 11502 11613 12166 12474 12798 13419 13986 14058 14553 14931 15642 15762 16317 16401 16827 17094 17538 18249 18389 19943 20461 20874 20979 21087 21978 23226 23463 23643 25641 26307 26838 28897 29106 29862 31311 32153 32634 32802 32967 33654 34839 36498 36778 38269 39263 39886 40257 40922 41958 42174 42581 43659 44793 46926 47286 48951 49203 50481 51282 52614 54747 55167 57794 59829 61383 61699 62622 63261 64306 65934 69678 70389 70929 76538 76923 78526 78921 80514 85162 86691 87318 89586 93933 96459 97902 98406 100962 104517 109494 110334 114807 117789 119658 122766 123398 126522 127743 128723 140778 141858 143227 146853 147609 151443 153846 157842 164241 165501 173382 179487 184149 185097 187866 192918 202279 207533 209034 212787 225071 229614 230769 235578 236763 255486 257446 260073 274841 281799 286454 289377 293706 295218 302886 313551 328482 331002 344421 353367 358974 368298 370194 383229 386169 404558 415066 425574 429681 431893 442827 450142 454329 461538 473526 492723 496503 520146 538461 549682 552447 555291 563598 578754 606837 622599 627102 675213 688842 706734 766458 772338 780219 824523 859362 863786 868131 885654 908658 985446 993006 1033263 1060101 1076922 1104894 1110582 1149687 1158507 1213674 1245198 1289043 1295679 1350426 1415953 1452731 1489509 1560438 1575497 1615383 1649046 1657341 1665873 1736262 1820511 1867797 2025639 2066526 2120202 2282863 2299374 2317014 2340657 2473569 2578086 2591358 2604393 2831906 2905462 2979018 3023251 3099789 3150994 3180303 3230766 3314682 3331746 3449061 3475521 3641022 3735594 3867129 3887037 4051278 4247859 4358193 4565726 4681314 4726491 4947138 4997619 5208786 5461533 5603391 6046502 6076917 6199578 6360606 6848589 6898122 6951042 7420707 7734258 7774074 8495718 8716386 9069753 9452982 9995238 10169117 10426563 10923066 11206782 11601387 11661111 12153834 12743577 13074579 13697178 14179473 14841414 15980041 16384599 16810173 18139506 18230751 20338234 20545767 20853126 22262121 23202774 23322222 25487154 26149158 27209259 28358946 30507351 31960082 32769198 33620346 34983333 36461502 38230731 39223737 41091534 42538419 44524242 47940123 54418518 61014702 61637301 69966666 76461462 78447474 81627777 85076838 91522053 95880246 111860287 114692193 117671211 123274602 127615257 143820369 163255554 183044106 184911903 223720574 229384386 235342422 244883331 255230514 274566159 287640738 335580861 369823806 431461107 489766662 549132318 671161722 823698477 862922214 1006742583 1294383321 1647396954 2013485166 2588766642 3020227749 6040455498 9060683247 18121366494
- Sum of all divisors σ(n): 54346152960
- Sum of proper divisors (its aliquot sum) s(n): 36224786466
- 18121366494 is an abundant number, because the sum of its proper divisors (36224786466) is greater than itself. Its abundance is 18103419972
Bases of 18121366494
- Binary: 100001110000001111000011011110111102
- Hexadecimal: 0x4381E1BDE
- Base-36: 8BOZRVI
Squares and roots of 18121366494
- 18121366494 squared (181213664942) is 328383923609865852036
- 18121366494 cubed (181213664943) is 5950765430472078578919932081784
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The
square root of 18121366494 is 134615.6249994775 -
The
cube root of 18121366494 is 2626.6183940047
Scales and comparisons
How big is 18121366494?- 18,121,366,494 seconds is equal to 576 years, 10 weeks, 4 days, 54 minutes, 54 seconds.
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To count from 1 to 18,121,366,494 would take you about one thousand, one hundred fifty-two 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 18121366494 cubic inches would be around 218.9 feet tall.
Recreational maths with 18121366494
- 18121366494 backwards is 49466312181
- The number of decimal digits it has is: 11
- The sum of 18121366494's digits is 45
- More coming soon!
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