18118180899

Names of 18118180899

• Cardinal: 18118180899 can be written as Eighteen billion, one hundred eighteen million, one hundred eighty thousand, eight hundred ninety-nine.

Scientific notation

• Scientific notation: 1.8118180899 × 10¹⁰

Factors of 18118180899

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 648

Divisors of 18118180899

• Number of divisors d(n): 192
• Complete list of divisors:
  1 3 7 9 13 17 21 27 39 51 61 63 91 117 119 153 169 183 189 221 273 351 357 427 459 507 547 549 663 793 819 1037 1071 1183 1281 1521 1547 1641 1647 1989 2379 2457 2873 3111 3213 3549 3829 3843 4563 4641 4923 5551 5967 7111 7137 7259 8619 9299 9333 10309 10647 11487 11529 13481 13923 14769 16653 20111 21333 21411 21777 25857 27897 27999 30927 31941 33367 34461 40443 41769 49777 49959 60333 63999 65093 65331 72163 77571 83691 92443 92781 94367 100101 103383 120887 121329 149331 149877 175253 180999 191997 195279 195993 216489 233569 251073 277329 278343 283101 300303 362661 363987 433771 447993 525759 542997 567239 585837 647101 649467 700707 831987 846209 849303 900909 1087983 1226771 1301313 1343979 1571531 1577277 1701717 1757511 1941303 1948401 2102121 2495961 2538627 2547909 3036397 3263949 3680313 3903939 3970673 4714593 4731831 5105151 5639023 5823909 6306363 7374107 7615881 9109191 11000717 11040939 11711817 11912019 14143779 15315453 16917069 17471727 22122321 22847643 27327573 33002151 33122817 35736057 39473161 42431337 50751207 51618749 66366963 81982719 95863391 99006453 107208171 118419483 152253621 154856247 199100889 287590173 297019359 355258449 464568741 671043737 862770519 1065775347 1393706223 2013131211 2588311557 6039393633 18118180899
• Sum of all divisors σ(n): 35813422080
• Sum of proper divisors (its aliquot sum) s(n): 17695241181
• 18118180899 is a deficient number, because the sum of its proper divisors (17695241181) is less than itself. Its deficiency is 422939718

Bases of 18118180899

• Binary: 10000110111111011011000000000100011₂
• Hexadecimal: 0x437ED8023
• Base-36: 8BN3HUR

Squares and roots of 18118180899

• 18118180899 squared (18118180899²) is 328268479088888448201
• 18118180899 cubed (18118180899³) is 5947627687572079605337109112699
• The square root of 18118180899 is 134603.7922905591
• The cube root of 18118180899 is 2626.4644719707

Scales and comparisons

• 18,118,180,899 seconds is equal to 576 years, 5 weeks, 2 days, 4 hours, 1 minute, 39 seconds.
• To count from 1 to 18,118,180,899 would take you about one thousand, one hundred fifty-two 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 18118180899 cubic inches would be around 218.9 feet tall.

Recreational maths with 18118180899

• 18118180899 backwards is 99808181181
• The number of decimal digits it has is: 11
• The sum of 18118180899's digits is 54
• More coming soon!