18089951940

Names of 18089951940

• Cardinal: 18089951940 can be written as Eighteen billion, eighty-nine million, nine hundred fifty-one thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.808995194 × 10¹⁰

Factors of 18089951940

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 538

Divisors of 18089951940

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 17 18 20 27 30 34 36 37 41 45 51 54 60 68 74 81 82 85 90 102 108 111 123 135 148 153 162 164 170 180 185 204 205 222 246 255 270 306 324 333 340 369 370 405 410 433 444 459 492 510 540 555 612 615 629 666 697 738 740 765 810 820 866 918 999 1020 1107 1110 1230 1258 1299 1332 1377 1394 1476 1517 1530 1620 1665 1732 1836 1845 1887 1998 2091 2165 2214 2220 2295 2460 2516 2598 2754 2788 2997 3034 3060 3145 3321 3330 3485 3690 3774 3897 3996 4182 4330 4428 4551 4590 4995 5196 5508 5535 5661 5994 6068 6273 6290 6495 6642 6660 6885 6970 7361 7380 7548 7585 7794 8364 8660 9102 9180 9435 9990 10455 11070 11322 11691 11988 12546 12580 12990 13284 13653 13770 13940 14722 14985 15170 15588 16021 16605 16983 17753 18204 18819 18870 19485 19980 20910 22083 22140 22644 22755 23382 25092 25789 25980 27306 27540 28305 29444 29970 30340 31365 32042 33210 33966 35073 35506 36805 37638 37740 38970 40959 41820 44166 45510 46764 48063 50949 51578 53259 54612 56457 56610 58455 59940 62730 64084 66249 66420 67932 68265 70146 71012 73610 75276 77367 77940 80105 81918 84915 88332 88765 91020 94095 96126 101898 103156 106518 110415 112914 113220 116910 122877 125460 128945 132498 136530 140292 144189 147220 154734 159777 160210 163836 169830 175365 177530 188190 192252 198747 203796 204795 213036 220830 225828 232101 233820 240315 245754 254745 257890 264996 266295 272357 273060 282285 288378 301801 309468 319554 320420 331245 339660 350730 355060 376380 386835 397494 409590 432567 441660 464202 479331 480630 491508 509490 515780 532590 544714 564570 576756 596241 603602 614385 639108 656861 662490 696303 701460 720945 773670 794988 798885 817071 819180 865134 905403 928404 958662 961260 993735 1018980 1065180 1089428 1129140 1160505 1192482 1207204 1228770 1297701 1313722 1324980 1361785 1392606 1437993 1441890 1509005 1547340 1597770 1634142 1730268 1810806 1917324 1970583 1987470 2088909 2162835 2321010 2384964 2396655 2451213 2457540 2595402 2627444 2716209 2723570 2785212 2875986 2883780 2981205 3018010 3195540 3268284 3284305 3481515 3621612 3941166 3974940 4085355 4177818 4325670 4527015 4642020 4793310 4902426 5190804 5432418 5447140 5751972 5911749 5962410 6036020 6488505 6568610 6963030 7189965 7353639 7882332 8148627 8170710 8355636 8651340 9054030 9586620 9804852 9852915 10444545 10864836 11166637 11823498 11924820 12256065 12977010 13137220 13581045 13926060 14379930 14707278 16297254 16341420 17735247 18108060 19705830 20889090 22060917 22333274 23646996 24445881 24512130 25954020 27162090 28759860 29414556 29558745 32594508 33499911 35470494 36768195 39411660 40743135 41778180 44121834 44666548 48891762 49024260 53205741 54324180 55833185 59117490 66999822 70940988 73536390 81486270 88243668 88676235 97783524 100499733 106411482 110304585 111666370 118234980 122229405 133999644 147072780 162972540 167499555 177352470 200999466 212822964 220609170 223332740 244458810 266028705 301499199 334999110 354704940 401998932 441218340 488917620 502498665 532057410 602998398 669998220 904497597 1004997330 1064114820 1205996796 1507495995 1808995194 2009994660 3014991990 3617990388 4522487985 6029983980 9044975970 18089951940
• Sum of all divisors σ(n): 63362132064
• Sum of proper divisors (its aliquot sum) s(n): 45272180124
• 18089951940 is an abundant number, because the sum of its proper divisors (45272180124) is greater than itself. Its abundance is 27182228184

Bases of 18089951940

• Binary: 10000110110001111101100001011000100₂
• Hexadecimal: 0x4363EC2C4
• Base-36: 8B6AG90

Squares and roots of 18089951940

• 18089951940 squared (18089951940²) is 327246361191509763600
• 18089951940 cubed (18089951940³) is 5919870946494292759564761384000
• The square root of 18089951940 is 134498.8919656961
• The cube root of 18089951940 is 2625.0997121307

Scales and comparisons

• 18,089,951,940 seconds is equal to 575 years, 10 weeks, 4 days, 10 hours, 39 minutes.
• To count from 1 to 18,089,951,940 would take you about one thousand, one hundred fifty 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 18089951940 cubic inches would be around 218.8 feet tall.

Recreational maths with 18089951940

• 18089951940 backwards is 04915998081
• 18089951940 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18089951940's digits is 54
• More coming soon!