18078334890

Names of 18078334890

• Cardinal: 18078334890 can be written as Eighteen billion, seventy-eight million, three hundred thirty-four thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 1.807833489 × 10¹⁰

Factors of 18078334890

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 210

Divisors of 18078334890

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 5 6 7 10 11 14 15 19 21 22 30 33 35 38 42 49 55 57 66 70 77 95 98 105 110 114 133 147 154 163 165 190 209 210 231 245 266 285 294 326 330 361 385 399 418 462 489 490 539 570 627 665 722 735 770 798 815 931 978 1045 1078 1083 1141 1155 1254 1330 1463 1470 1617 1630 1793 1805 1862 1995 2090 2166 2282 2310 2445 2527 2695 2793 2926 3097 3135 3234 3423 3586 3610 3971 3990 4389 4655 4890 5054 5379 5390 5415 5586 5705 6194 6270 6846 6859 7315 7581 7942 7987 8085 8778 8965 9291 9310 10241 10758 10830 11410 11913 12551 12635 13718 13965 14630 15162 15485 15974 16170 17115 17689 17930 18582 19855 20482 20577 21679 21945 23826 23961 25102 25270 26895 27797 27930 30723 30970 34067 34230 34295 35378 37653 37905 39710 39935 41154 43358 43890 46455 47922 48013 51205 53067 53790 55594 58843 59565 61446 62755 65037 68134 68590 75306 75449 75810 79870 83391 87857 88445 92910 96026 102201 102410 102885 106134 108395 117686 119130 119805 125510 130074 138985 144039 150898 151753 153615 166782 170335 175714 176529 176890 188265 194579 204402 205770 216790 226347 238469 239610 240065 263571 265335 277970 288078 294215 303506 307230 325185 336091 340670 353058 376530 377245 389158 411901 416955 439285 452694 455259 476938 480130 511005 527142 528143 530670 583737 588430 647273 650370 672182 715407 720195 754490 758765 823802 833910 878570 882645 910518 972895 1008273 1022010 1056286 1118017 1131735 1167474 1192345 1235703 1294546 1317855 1430814 1440390 1517530 1584429 1669283 1680455 1765290 1941819 1945790 2016546 2059505 2236034 2263470 2276295 2384690 2471406 2635710 2640715 2883307 2918685 3168858 3236365 3338566 3354051 3360910 3577035 3697001 3883638 4119010 4530911 4552590 5007849 5041365 5281430 5590085 5766614 5837370 6178515 6472730 6708102 7154070 7394002 7826119 7922145 8346415 8649921 9061822 9709095 10015698 10082730 11091003 11180170 12298187 12357030 13592733 14416535 15652238 15844290 16692830 16770255 17299842 18485005 19418190 22182006 22654555 23478357 24596374 25039245 27185466 28833070 31716377 33540510 36894561 36970010 39130595 43249605 45309110 46956714 50078490 54782833 55455015 61490935 63432754 67963665 73789122 78261190 86087309 86499210 95149131 109565666 110910030 117391785 122981870 135927330 158581885 164348499 172174618 184472805 190298262 234783570 258261927 273914165 317163770 328696998 368945610 430436545 475745655 516523854 547828330 602611163 821742495 860873090 951491310 1205222326 1291309635 1643484990 1807833489 2582619270 3013055815 3615666978 6026111630 9039167445 18078334890
• Sum of all divisors σ(n): 58475105280
• Sum of proper divisors (its aliquot sum) s(n): 40396770390
• 18078334890 is an abundant number, because the sum of its proper divisors (40396770390) is greater than itself. Its abundance is 22318435500

Bases of 18078334890

• Binary: 10000110101100011010111111110101010₂
• Hexadecimal: 0x4358D7FAA
• Base-36: 8AZDGH6

Squares and roots of 18078334890

• 18078334890 squared (18078334890²) is 326826192394991312100
• 18078334890 cubed (18078334890³) is 5908473356940224098784309169000
• The square root of 18078334890 is 134455.6986148225
• The cube root of 18078334890 is 2624.5376607955

Scales and comparisons

• 18,078,334,890 seconds is equal to 574 years, 43 weeks, 2 days, 23 hours, 41 minutes, 30 seconds.
• To count from 1 to 18,078,334,890 would take you about one thousand, one hundred forty-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 18078334890 cubic inches would be around 218.7 feet tall.

Recreational maths with 18078334890

• 18078334890 backwards is 09843387081
• The number of decimal digits it has is: 11
• The sum of 18078334890's digits is 51
• More coming soon!