18218134340

Names of 18218134340

• Cardinal: 18218134340 can be written as Eighteen billion, two hundred eighteen million, one hundred thirty-four thousand, three hundred forty.

Scientific notation

• Scientific notation: 1.821813434 × 10¹⁰

Factors of 18218134340

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 7549

Divisors of 18218134340

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 20 28 35 41 49 61 70 82 98 122 140 164 196 205 244 245 287 305 410 427 490 574 610 820 854 980 1148 1220 1435 1708 2009 2135 2501 2870 2989 4018 4270 5002 5740 5978 7433 8036 8540 10004 10045 11956 12505 14866 14945 17507 20090 25010 29732 29890 35014 37165 40180 50020 52031 59780 70028 74330 87535 104062 122549 148660 175070 208124 245098 260155 304753 350140 364217 453413 490196 520310 609506 612745 728434 906826 1040620 1219012 1225490 1456868 1523765 1813652 1821085 2133271 2267065 2450980 3047530 3173891 3642170 4266542 4534130 6095060 6347782 7284340 8533084 9068260 10666355 12695564 14932897 15869455 18589933 21332710 22217237 29865794 31738910 37179866 42665420 44434474 59731588 63477820 74359732 74664485 88868948 92949665 111086185 130129531 149328970 185899330 222172370 260259062 298657940 371798660 444344740 520518124 650647655 910906717 1301295310 1821813434 2602590620 3643626868 4554533585 9109067170 18218134340
• Sum of all divisors σ(n): 46343377584
• Sum of proper divisors (its aliquot sum) s(n): 28125243244
• 18218134340 is an abundant number, because the sum of its proper divisors (28125243244) is greater than itself. Its abundance is 9907108904

Bases of 18218134340

• Binary: 10000111101111000101010101101000100₂
• Hexadecimal: 0x43DE2AB44
• Base-36: 8DALUF8

Squares and roots of 18218134340

• 18218134340 squared (18218134340²) is 331900418830287235600
• 18218134340 cubed (18218134340³) is 6046606417752438518948030504000
• The square root of 18218134340 is 134974.5692343561
• The cube root of 18218134340 is 2631.2854650821

Scales and comparisons

• 18,218,134,340 seconds is equal to 579 years, 14 weeks, 4 days, 52 minutes, 20 seconds.
• To count from 1 to 18,218,134,340 would take you about one thousand, one hundred fifty-eight 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 18218134340 cubic inches would be around 219.3 feet tall.

Recreational maths with 18218134340

• 18218134340 backwards is 04343181281
• 18218134340 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18218134340's digits is 35
• More coming soon!