18009981990
18,009,981,990 is an even composite number composed of eight prime numbers multiplied together.
18009981990 is an even composite number. It is composed of eight distinct prime numbers multiplied together. It has a total of five hundred twelve divisors.
Prime factorization of 18009981990:
2 × 33 × 5 × 7 × 11 × 13 × 37 × 1801
(2 × 3 × 3 × 3 × 5 × 7 × 11 × 13 × 37 × 1801)See below for interesting mathematical facts about the number 18009981990 from the Numbermatics database.
Names of 18009981990
- Cardinal: 18009981990 can be written as Eighteen billion, nine million, nine hundred eighty-one thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 1.800998199 × 1010
Factors of 18009981990
Divisors of 18009981990
- Number of divisors d(n): 512
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Complete list of divisors:
1 2 3 5 6 7 9 10 11 13 14 15 18 21 22 26 27 30 33 35 37 39 42 45 54 55 63 65 66 70 74 77 78 90 91 99 105 110 111 117 126 130 135 143 154 165 182 185 189 195 198 210 222 231 234 259 270 273 286 297 315 330 333 351 370 378 385 390 407 429 455 462 481 495 518 546 555 585 594 630 666 693 702 715 770 777 814 819 858 910 945 962 990 999 1001 1110 1155 1170 1221 1287 1295 1365 1386 1430 1443 1485 1554 1638 1665 1755 1801 1890 1998 2002 2035 2079 2145 2310 2331 2405 2442 2457 2574 2590 2730 2849 2886 2970 3003 3330 3367 3465 3510 3602 3663 3861 3885 4070 4095 4158 4290 4329 4662 4810 4914 4995 5005 5291 5403 5698 6006 6105 6435 6734 6930 6993 7215 7326 7722 7770 8190 8547 8658 9005 9009 9990 10010 10101 10395 10582 10806 10989 11655 12210 12285 12607 12870 12987 13986 14245 14430 15015 15873 16209 16835 17094 18010 18018 18315 19305 19811 20202 20790 21645 21978 23310 23413 24570 25214 25641 25974 26455 27015 27027 28490 30030 30303 31746 32418 33670 34965 36630 37037 37821 38610 39622 42735 43290 45045 46826 47619 48627 50505 51282 52910 54030 54054 54945 59433 60606 63035 64935 66637 69930 70239 74074 75642 76923 79365 81045 85470 90090 90909 95238 97254 99055 101010 109890 111111 113463 117065 118866 126070 128205 129870 133274 135135 138677 140478 142857 151515 153846 158730 162090 163891 178299 181818 185185 189105 198110 199911 210717 222222 226926 234130 238095 243135 256410 257543 270270 277354 285714 297165 303030 327782 333185 333333 340389 351195 356598 370370 378210 384615 399822 416031 421434 454545 466459 476190 486270 491673 515086 534897 555555 567315 594330 599733 632151 666370 666666 680778 693385 702390 714285 733007 769230 772629 819455 832062 866281 891495 909090 932918 983346 999555 999999 1053585 1069794 1111110 1134630 1199466 1248093 1264302 1287715 1386770 1399377 1428570 1466014 1475019 1545258 1638910 1666665 1701945 1732562 1782990 1799199 1802801 1999110 1999998 2080155 2107170 2199021 2317887 2332295 2458365 2496186 2575430 2598843 2674485 2798754 2950038 2998665 3160755 3333330 3403890 3598398 3605602 3665035 3744279 3863145 4160310 4198131 4331405 4398042 4425057 4635774 4664590 4916730 4999995 5131049 5197686 5348970 5408403 5997330 6063967 6240465 6321510 6597063 6953661 6996885 7330070 7375095 7488558 7726290 7796529 8396262 8662810 8850114 8995995 9014005 9529091 9999990 10262098 10816806 10995105 11589435 12127934 12480930 12594393 12994215 13194126 13907322 13993770 14750190 15393147 15593058 16225209 17991990 18028010 18191901 18721395 19058182 19791189 20990655 21990210 22125285 23178870 23389587 25188786 25655245 25988430 27042015 28587273 30319835 30786294 32450418 32985315 34768305 36383802 37442790 38982645 39582378 41981310 44250570 46179441 46779174 47645455 48675627 51310490 54084030 54575703 57174546 60639670 62971965 65970630 66703637 69536610 76965735 77965290 81126045 85761819 90959505 92358882 95290910 97351254 98955945 109151406 116947935 125943930 133407274 138538323 142936365 153931470 162252090 163727109 171523638 181919010 197911890 200110911 230897205 233895870 243378135 257285457 272878515 277076646 285872730 327454218 333518185 400221822 428809095 461794410 486756270 514570914 545757030 600332733 667036370 692691615 818635545 857618190 1000554555 1200665466 1286427285 1385383230 1637271090 1800998199 2001109110 2572854570 3001663665 3601996398 6003327330 9004990995 18009981990
- Sum of all divisors σ(n): 66262855680
- Sum of proper divisors (its aliquot sum) s(n): 48252873690
- 18009981990 is an abundant number, because the sum of its proper divisors (48252873690) is greater than itself. Its abundance is 30242891700
Bases of 18009981990
- Binary: 100001100010111101010000100001001102
- Hexadecimal: 0x4317A8426
- Base-36: 89UOF1I
Squares and roots of 18009981990
- 18009981990 squared (180099819902) is 324359451280124360100
- 18009981990 cubed (180099819903) is 5841707875841322170361274599000
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The
square root of 18009981990 is 134201.2741742789 -
The
cube root of 18009981990 is 2621.2257531001
Scales and comparisons
How big is 18009981990?- 18,009,981,990 seconds is equal to 572 years, 34 weeks, 2 days, 20 hours, 46 minutes, 30 seconds.
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To count from 1 to 18,009,981,990 would take you about one thousand, one hundred forty-five 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 18009981990 cubic inches would be around 218.4 feet tall.
Recreational maths with 18009981990
- 18009981990 backwards is 09918990081
- 18009981990 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 18009981990's digits is 54
- More coming soon!
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Numbermatics. (2024). Number 18009981990 - Facts about the integer. Retrieved 20 June 2024, from https://numbermatics.com/n/18009981990/
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The information we have on file for 18009981990 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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