18395220690

Names of 18395220690

• Cardinal: 18395220690 can be written as Eighteen billion, three hundred ninety-five million, two hundred twenty thousand, six hundred ninety.

Scientific notation

• Scientific notation: 1.839522069 × 10¹⁰

Factors of 18395220690

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 90

Divisors of 18395220690

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 3 5 6 7 9 10 11 14 15 18 19 21 22 27 30 33 35 38 42 43 45 54 55 57 63 66 70 77 81 86 90 95 99 105 110 114 126 129 133 135 154 162 165 171 189 190 198 209 210 215 231 258 266 270 285 297 301 315 330 342 361 378 385 387 399 405 418 430 462 473 495 513 567 570 594 602 627 630 645 665 693 722 770 774 798 810 817 855 891 903 945 946 990 1026 1045 1083 1134 1155 1161 1197 1254 1290 1330 1386 1419 1463 1485 1505 1539 1634 1710 1782 1805 1806 1881 1890 1935 1995 2079 2090 2166 2310 2322 2365 2394 2451 2527 2565 2709 2835 2838 2926 2970 3010 3078 3135 3249 3311 3465 3483 3591 3610 3762 3870 3971 3990 4085 4158 4257 4389 4455 4515 4730 4902 5054 5130 5415 5418 5643 5670 5719 5805 5985 6237 6270 6498 6622 6859 6930 6966 7095 7182 7315 7353 7581 7695 7942 8127 8170 8514 8778 8910 8987 9030 9405 9747 9933 10395 10773 10830 11286 11438 11610 11913 11970 12255 12474 12635 12771 13167 13545 13718 14190 14630 14706 15162 15390 15523 16245 16254 16555 16929 17157 17415 17955 17974 18810 19494 19855 19866 20577 20790 21285 21546 21945 22059 22743 23826 24381 24510 25270 25542 26334 26961 27090 27797 28215 28595 29241 29799 31046 31185 32490 33110 33858 34295 34314 34830 35739 35910 36765 37905 38313 39501 39710 40635 41154 42570 43890 44118 44935 45486 46569 48013 48735 48762 49665 51471 53865 53922 55594 56430 57190 58482 59565 59598 61731 62370 62909 63855 65835 66177 68229 68590 71478 73530 75449 75810 76626 77615 79002 80883 81270 83391 84645 85785 89397 89870 93138 96026 97470 99330 102885 102942 107217 107730 108661 110295 113715 118503 119130 121905 123462 125818 127710 131670 132354 134805 136458 138985 139707 144039 146205 148995 150898 154413 155230 161766 166782 169290 170753 171570 178695 178794 185193 188727 191565 197505 204687 205770 214434 217322 220590 226347 227430 232845 237006 240065 242649 243810 250173 257355 268191 269610 277970 279414 288078 292410 294937 297990 308655 308826 314545 321651 325983 330885 341145 341506 357390 370386 377245 377454 383130 395010 404415 409374 416955 419121 432117 446985 452694 463239 465690 480130 485298 500346 512259 514710 528143 536085 536382 543305 555579 566181 589874 592515 617310 629090 643302 651966 661770 679041 682290 698535 720195 727947 750519 754490 772065 808830 833910 838242 853765 864234 884811 893970 925965 926478 943635 977949 1023435 1024518 1056286 1072170 1086610 1111158 1131735 1132362 1185030 1195271 1213245 1250865 1257363 1296351 1340955 1358082 1397070 1440390 1455894 1474685 1501038 1536777 1544130 1584429 1608255 1629915 1698543 1707530 1769622 1851930 1887270 1955898 2037123 2046870 2064559 2095605 2160585 2251557 2263470 2316195 2390542 2426490 2501730 2514726 2561295 2592702 2640715 2654433 2681910 2777895 2830905 2933847 2949370 3073554 3168858 3216510 3244307 3259830 3395205 3397086 3585813 3639735 3752595 3889053 4074246 4129118 4191210 4321170 4424055 4503114 4610331 4632390 4753287 4889745 5095629 5122590 5281430 5308866 5555790 5661810 5867694 5976355 6111369 6193677 6286815 6481755 6488614 6790410 7171626 7279470 7505190 7683885 7778106 7922145 7963299 8492715 8801541 8848110 9220662 9506574 9732921 9779490 10185615 10191258 10322795 10757439 11257785 11952710 12222738 12387354 12573630 12963510 13272165 13830993 14259861 14669235 15367770 15844290 15926598 16221535 16985430 17603082 17929065 18581031 19445265 19465842 20371230 20645590 21514878 22515570 22710149 23051655 23766435 23889897 25478145 26544330 27661986 28519722 29198763 29338470 30556845 30968385 32272317 32443070 35858130 37162062 38890530 39816495 42779583 44007705 45420298 46103310 47532870 47779794 48664605 50956290 53787195 55743093 58397526 61113690 61936770 64544634 68130447 69154965 71299305 79632990 85559166 87596289 88015410 92905155 96816951 97329210 107574390 111486186 113550745 119449485 136260894 138309930 142598610 145993815 161361585 167229279 175192578 185810310 193633902 204391341 213897915 227101490 238898970 262788867 278715465 291987630 322723170 334458558 340652235 408782682 427795830 437981445 484084755 525577734 557430930 613174023 681304470 836146395 875962890 968169510 1021956705 1226348046 1313944335 1672292790 1839522069 2043913410 2627888670 3065870115 3679044138 6131740230 9197610345 18395220690
• Sum of all divisors σ(n): 66607073280
• Sum of proper divisors (its aliquot sum) s(n): 48211852590
• 18395220690 is an abundant number, because the sum of its proper divisors (48211852590) is greater than itself. Its abundance is 29816631900

Bases of 18395220690

• Binary: 10001001000011100001100101011010010₂
• Hexadecimal: 0x44870CAD2
• Base-36: 8G81F4I

Squares and roots of 18395220690

• 18395220690 squared (18395220690²) is 338384144233804076100
• 18395220690 cubed (18395220690³) is 6224651011177616938081054509000
• The square root of 18395220690 is 135628.9817480025
• The cube root of 18395220690 is 2639.7836470427

Scales and comparisons

• 18,395,220,690 seconds is equal to 584 years, 47 weeks, 2 days, 15 hours, 31 minutes, 30 seconds.
• To count from 1 to 18,395,220,690 would take you about one thousand, one hundred sixty-nine 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 18395220690 cubic inches would be around 220 feet tall.

Recreational maths with 18395220690

• 18395220690 backwards is 09602259381
• 18395220690 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18395220690's digits is 45
• More coming soon!