18418701531438

Names of 18418701531438

• Cardinal: 18418701531438 can be written as Eighteen trillion, four hundred eighteen billion, seven hundred one million, five hundred thirty-one thousand, four hundred thirty-eight.

Scientific notation

• Scientific notation: 1.8418701531438 × 10¹³

Factors of 18418701531438

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 676

Divisors of 18418701531438

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 41 54 78 82 117 123 234 246 351 369 533 617 702 738 1066 1107 1234 1599 1681 1851 2214 3198 3362 3702 4797 5043 5553 8021 9594 10086 11106 14391 15129 16042 16659 21853 24063 25297 28782 30258 33318 43706 45387 48126 50594 65559 68921 72189 75891 90774 131118 137842 144378 151782 196677 206763 216567 227673 328861 380689 393354 413526 433134 455346 590031 620289 657722 683019 761378 895973 986583 1037177 1142067 1180062 1240578 1366038 1791946 1860867 1973166 2074354 2284134 2687919 2959749 3111531 3426201 3721734 4948957 5375838 5919498 6223062 6852402 8063757 8879247 9334593 9897914 10278603 13483301 14846871 15608249 16127514 17758494 18669186 20557206 24191271 26966602 28003779 29693742 31216498 40449903 42524257 44540613 46824747 48382542 56007558 80899806 85048514 89081226 93649494 121349709 127572771 133621839 140474241 202907237 242699418 255145542 267243678 280948482 364049127 382718313 405814474 421422723 552815341 608721711 639938209 728098254 765436626 842845446 1105630682 1148154939 1217443422 1279876418 1658446023 1826165133 1919814627 2296309878 3316892046 3652330266 3839629254 4975338069 5478495399 5759443881 8319196717 9950676138 10956990798 11518887762 14926014207 16638393434 17278331643 24957590151 26237466569 29852028414 34556663286 49915180302 52474933138 74872770453 78712399707 149745540906 157424799414 224618311359 236137199121 341087065397 449236622718 472274398242 682174130794 708411597363 1023261196191 1416823194726 2046522392382 3069783588573 6139567177146 9209350765719 18418701531438
• Sum of all divisors σ(n): 45254246869440
• Sum of proper divisors (its aliquot sum) s(n): 26835545338002
• 18418701531438 is an abundant number, because the sum of its proper divisors (26835545338002) is greater than itself. Its abundance is 8416843806564

Bases of 18418701531438

• Binary: 100001100000001110000001010010111100100101110₂
• Hexadecimal: 0x10C07029792E
• Base-36: 6J1FNC27I

Squares and roots of 18418701531438

• 18418701531438 squared (18418701531438²) is 339248566104196526502347844
• 18418701531438 cubed (18418701531438³) is 6248518084041510140167314387985377519672
• The square root of 18418701531438 is 4291701.4727772015
• The cube root of 18418701531438 is 26409.0636595211

Scales and comparisons

• 18,418,701,531,438 seconds is equal to 585,657 years, 38 weeks, 1 day, 20 hours, 57 minutes, 18 seconds.
• To count from 1 to 18,418,701,531,438 would take you about one million, four hundred sixty-four thousand, one hundred forty-four 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 18418701531438 cubic inches would be around 2200.8 feet tall.

Recreational maths with 18418701531438

• 18418701531438 backwards is 83413510781481
• 18418701531438 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18418701531438's digits is 54
• More coming soon!