18207486990

Names of 18207486990

• Cardinal: 18207486990 can be written as Eighteen billion, two hundred seven million, four hundred eighty-six thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.820748699 × 10¹⁰

Factors of 18207486990

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 175

Divisors of 18207486990

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 14 15 18 21 22 27 30 31 33 35 42 43 45 54 55 62 63 66 70 73 77 81 86 90 93 99 105 110 126 129 135 146 154 155 162 165 186 189 198 210 215 217 219 231 243 258 270 279 297 301 310 315 330 341 365 378 385 387 405 430 434 438 462 465 473 486 495 511 558 567 594 602 630 645 651 657 682 693 730 770 774 803 810 837 891 903 930 945 946 990 1022 1023 1085 1095 1134 1155 1161 1215 1290 1302 1314 1333 1386 1395 1419 1485 1505 1533 1606 1674 1701 1705 1782 1806 1890 1935 1953 1971 2046 2079 2170 2190 2263 2310 2322 2365 2387 2409 2430 2511 2555 2666 2673 2709 2790 2835 2838 2970 3010 3066 3069 3139 3255 3285 3311 3402 3410 3465 3483 3870 3906 3942 3999 4015 4158 4185 4257 4455 4515 4526 4599 4730 4774 4818 5022 5110 5115 5346 5418 5621 5670 5805 5859 5913 6138 6237 6278 6510 6570 6622 6665 6789 6930 6966 7095 7161 7227 7533 7665 7998 8030 8127 8370 8505 8514 8910 9030 9198 9207 9331 9417 9765 9855 9933 10230 10395 10449 11242 11315 11610 11718 11826 11935 11997 12045 12474 12555 12771 13330 13365 13545 13578 13797 14190 14322 14454 14663 15066 15330 15345 15695 15841 16254 16555 16863 17010 17415 17577 17739 18414 18662 18711 18834 19530 19710 19866 19995 20367 20790 20898 21285 21483 21681 21973 22630 22995 23870 23994 24090 24381 24893 25110 25542 26730 27090 27594 27621 27993 28105 28251 29295 29326 29565 29799 30690 31185 31390 31682 33110 33726 33945 34529 34830 35154 35478 35805 35991 36135 37422 37665 38313 39990 40635 40734 41391 42570 42966 43362 43946 43989 45990 46035 46655 47085 47523 48762 49665 49786 50589 52245 52731 55242 55986 56210 56502 58590 59130 59598 59985 61101 62370 63855 64449 65043 65919 67890 68985 69058 71610 71982 72270 73143 73315 74679 75330 76626 79205 81270 82782 82863 83979 84315 84753 87885 87978 88695 89397 92070 93310 93555 94170 95046 97309 99330 101178 101835 102641 103587 104490 105462 107415 107973 108405 109865 114939 119970 121905 122202 124173 124465 127710 128898 130086 131838 131967 137970 138105 139965 141255 142569 146286 146630 148995 149358 151767 158410 165726 167958 168630 169506 172645 174251 175770 177390 178794 179955 183303 187110 191565 193347 194618 195129 197757 203670 205282 206955 207174 214830 215946 216810 219730 219945 224037 229878 237615 241703 243810 248346 248930 251937 252945 254259 263655 263934 268191 276210 279930 282510 285138 291927 297990 303534 305505 307923 310761 322245 323919 325215 329595 345290 348502 359910 365715 366606 373395 383130 386694 390258 395514 395901 413910 414315 419895 423765 427707 439890 446985 448074 455301 475230 483406 486545 503874 505890 508518 513205 517935 522753 527310 536382 539865 549909 574695 580041 583854 593271 611010 615846 620865 621522 644490 647838 650430 659190 659835 672111 681163 712845 725109 731430 746790 755811 758835 762777 791802 804573 828630 839790 847530 855414 871255 875781 893970 910602 916515 923769 932283 966735 973090 975645 988785 1026410 1035870 1045506 1070399 1079730 1099818 1120185 1149390 1160082 1186542 1187703 1208515 1241730 1259685 1271295 1283121 1319670 1340955 1344222 1362326 1365903 1425690 1450218 1459635 1511622 1517670 1525554 1539615 1553805 1568259 1609146 1619595 1742510 1751562 1779813 1833030 1847538 1864566 1933470 1951290 1977570 1979505 2016333 2043489 2138535 2140798 2175327 2240370 2267433 2276505 2375406 2417030 2519370 2542590 2566242 2613765 2627343 2681910 2731806 2749545 2771307 2796849 2900205 2919270 2966355 3079230 3107610 3136518 3211197 3239190 3360555 3405815 3559626 3563109 3625545 3779055 3813885 3849363 3959010 4022865 4032666 4086978 4277070 4350654 4378905 4534866 4553010 4618845 4661415 4704777 5227530 5254686 5339439 5351995 5499090 5542614 5593698 5800410 5932710 5938515 6048999 6130467 6415605 6422394 6525981 6721110 6811630 6829515 7126218 7251090 7492793 7558110 7627770 7698726 7841295 7882029 8045730 8313921 8390547 8757810 8899065 9237690 9322830 9409554 9633591 10081665 10217445 10678878 10703990 10876635 11337165 11877030 12097998 12260934 12831210 13051962 13136715 13659030 13856535 13984245 14114331 14985586 15682590 15764058 16055985 16627842 16781094 17798130 17815545 18391401 19246815 19267182 19577943 20163330 20434890 21753270 22478379 22674330 23523885 23646087 24941763 26273430 26697195 27713070 27968490 28228662 28900773 30244995 30652335 32111970 32629905 35631090 36782802 37463965 38493630 39155886 39410145 41569605 41952735 42342993 44956758 47047770 47292174 48167955 49883526 53394390 55174203 57801546 58733829 60489990 61304670 65259810 67435137 70571655 74927930 78820290 83139210 83905470 84685986 86702319 91957005 96335910 97889715 110348406 112391895 117467658 118230435 124708815 134870274 141143310 144503865 165522609 173404638 183914010 195779430 202305411 211714965 224783790 236460870 249417630 260106957 275871015 289007730 293669145 331045218 337175685 404610822 423429930 433511595 520213914 551742030 587338290 606916233 674351370 827613045 867023190 1011527055 1213832466 1300534785 1655226090 1820748699 2023054110 2601069570 3034581165 3641497398 6069162330 9103743495 18207486990
• Sum of all divisors σ(n): 65535934464
• Sum of proper divisors (its aliquot sum) s(n): 47328447474
• 18207486990 is an abundant number, because the sum of its proper divisors (47328447474) is greater than itself. Its abundance is 29120960484

Bases of 18207486990

• Binary: 10000111101010000000011010000001110₂
• Hexadecimal: 0x43D40340E
• Base-36: 8D49MVI

Squares and roots of 18207486990

• 18207486990 squared (18207486990²) is 331512582491019260100
• 18207486990 cubed (18207486990³) is 6036011032726534970110176099000
• The square root of 18207486990 is 134935.1214102541
• The cube root of 18207486990 is 2630.7727584121

Scales and comparisons

• 18,207,486,990 seconds is equal to 578 years, 48 weeks, 6 days, 19 hours, 16 minutes, 30 seconds.
• To count from 1 to 18,207,486,990 would take you about one thousand, one hundred fifty-seven 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 18207486990 cubic inches would be around 219.2 feet tall.

Recreational maths with 18207486990

• 18207486990 backwards is 09968470281
• 18207486990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18207486990's digits is 54
• More coming soon!