18383601990

Names of 18383601990

• Cardinal: 18383601990 can be written as Eighteen billion, three hundred eighty-three million, six hundred one thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.838360199 × 10¹⁰

Factors of 18383601990

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1438

Divisors of 18383601990

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 5 6 10 13 15 26 29 30 39 58 65 78 87 97 130 145 169 174 194 195 290 291 338 377 390 435 485 507 582 754 845 870 970 1014 1131 1261 1289 1455 1690 1885 2262 2522 2535 2578 2813 2910 3770 3783 3867 4901 5070 5626 5655 6305 6445 7566 7734 8439 9802 11310 12610 12890 14065 14703 16393 16757 16878 18915 19335 24505 28130 29406 32786 33514 36569 37381 37830 38670 42195 49010 49179 50271 73138 73515 74762 81965 83785 84390 98358 100542 109707 112143 125033 147030 163930 167570 182845 186905 217841 219414 224286 245895 250066 251355 365690 373810 375099 435682 475397 485953 491790 502710 548535 560715 625165 653523 750198 950794 971906 1089205 1097070 1121430 1250330 1307046 1426191 1457859 1625429 1875495 2178410 2376985 2429765 2852382 2915718 3250858 3267615 3625957 3750990 4753970 4859530 4876287 6317389 6535230 7130955 7251914 7289295 8127145 9752574 10877871 12634778 14261910 14578590 16254290 18129785 18952167 21130577 21755742 24381435 31586945 36259570 37904334 42261154 47137441 48762870 54389355 63173890 63391731 94274882 94760835 105652885 108778710 126783462 141412323 189521670 211305770 235687205 282824646 316958655 471374410 612786733 633917310 707061615 1225573466 1414123230 1838360199 3063933665 3676720398 6127867330 9191800995 18383601990
• Sum of all divisors σ(n): 49971297600
• Sum of proper divisors (its aliquot sum) s(n): 31587695610
• 18383601990 is an abundant number, because the sum of its proper divisors (31587695610) is greater than itself. Its abundance is 13204093620

Bases of 18383601990

• Binary: 10001000111101111111000000101000110₂
• Hexadecimal: 0x447BF8146
• Base-36: 8G14E2U

Squares and roots of 18383601990

• 18383601990 squared (18383601990²) is 337956822126731960100
• 18383601990 cubed (18383601990³) is 6212863707783065693890960599000
• The square root of 18383601990 is 135586.1423228789
• The cube root of 18383601990 is 2639.2277542117

Scales and comparisons

• 18,383,601,990 seconds is equal to 584 years, 28 weeks, 1 day, 4 hours, 6 minutes, 30 seconds.
• To count from 1 to 18,383,601,990 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 18383601990 cubic inches would be around 219.9 feet tall.

Recreational maths with 18383601990

• 18383601990 backwards is 09910638381
• The number of decimal digits it has is: 11
• The sum of 18383601990's digits is 48
• More coming soon!