18648918123381

Names of 18648918123381

• Cardinal: 18648918123381 can be written as Eighteen trillion, six hundred forty-eight billion, nine hundred eighteen million, one hundred twenty-three thousand, three hundred eighty-one.

Scientific notation

• Scientific notation: 1.8648918123381 × 10¹³

Factors of 18648918123381

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5203

Divisors of 18648918123381

• Number of divisors d(n): 108
• Complete list of divisors:
  1 3 7 9 13 21 39 63 67 91 117 169 201 273 469 507 603 819 871 1183 1407 1521 2613 3549 4221 5113 6097 7839 10647 11323 15339 18291 33969 35791 46017 54873 66469 79261 101907 107373 199407 237783 322119 342571 465283 598221 713349 864097 1027713 1395849 2397997 2592291 3083139 4187547 4453423 6048679 7193991 7776873 13360269 18146037 21581973 26142769 31173961 40080807 54438111 57894499 78428307 93521883 173683497 182999383 235284921 280565649 339855997 405261493 521050491 548998149 1019567991 1215784479 1646994447 1751565523 2378991979 3058703973 3647353437 4418127961 5254696569 7136975937 12260958661 13254383883 15764089707 21410927811 22770351799 30926895727 36782875983 39763151649 68311055397 92780687181 110348627949 159392462593 204933166191 278342061543 296014573387 478177387779 888043720161 1434532163337 2072102013709 2664131160483 6216306041127 18648918123381
• Sum of all divisors σ(n): 33839962629408
• Sum of proper divisors (its aliquot sum) s(n): 15191044506027
• 18648918123381 is a deficient number, because the sum of its proper divisors (15191044506027) is less than itself. Its deficiency is 3457873617354

Bases of 18648918123381

• Binary: 100001111011000001010001000111110001101110101₂
• Hexadecimal: 0x10F60A23E375
• Base-36: 6LZ70CLF9

Squares and roots of 18648918123381

• 18648918123381 squared (18648918123381²) is 347782147172568318738871161
• 18648918123381 cubed (18648918123381³) is 6485760787394867525857723428374460715341
• The square root of 18648918123381 is 4318439.3156997123
• The cube root of 18648918123381 is 26518.6379497991

Scales and comparisons

• 18,648,918,123,381 seconds is equal to 592,977 years, 47 weeks, 2 days, 18 hours, 16 minutes, 21 seconds.
• To count from 1 to 18,648,918,123,381 would take you about one million, four hundred eighty-two thousand, four 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 18648918123381 cubic inches would be around 2209.9 feet tall.

Recreational maths with 18648918123381

• 18648918123381 backwards is 18332181984681
• 18648918123381 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18648918123381's digits is 63
• More coming soon!