18906388910388

Names of 18906388910388

• Cardinal: 18906388910388 can be written as Eighteen trillion, nine hundred six billion, three hundred eighty-eight million, nine hundred ten thousand, three hundred eighty-eight.

Scientific notation

• Scientific notation: 1.8906388910388 × 10¹³

Factors of 18906388910388

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 8907192

Divisors of 18906388910388

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 8431 16862 25293 33724 50586 59017 75879 101172 118034 151758 177051 236068 303516 354102 531153 708204 1062306 2124612 8898749 17797498 26696247 35594996 53392494 62291243 80088741 106784988 124582486 160177482 186873729 249164972 320354964 373747458 560621187 747494916 1121242374 2242484748 75025352819 150050705638 225076058457 300101411276 450152116914 525177469733 675228175371 900304233828 1050354939466 1350456350742 1575532409199 2100709878932 2700912701484 3151064818398 4726597227597 6302129636796 9453194455194 18906388910388
• Sum of all divisors σ(n): 54624941280000
• Sum of proper divisors (its aliquot sum) s(n): 35718552369612
• 18906388910388 is an abundant number, because the sum of its proper divisors (35718552369612) is greater than itself. Its abundance is 16812163459224

Bases of 18906388910388

• Binary: 100010011000111111100100110000101000100110100₂
• Hexadecimal: 0x1131FC985134
• Base-36: 6P9H3T450

Squares and roots of 18906388910388

• 18906388910388 squared (18906388910388²) is 357451541630842345894310544
• 18906388910388 cubed (18906388910388³) is 6758117862690452240527343731384659531072
• The square root of 18906388910388 is 4348147.7562736987
• The cube root of 18906388910388 is 26640.1211634001

Scales and comparisons

• 18,906,388,910,388 seconds is equal to 601,164 years, 35 weeks, 4 days, 17 hours, 19 minutes, 48 seconds.
• To count from 1 to 18,906,388,910,388 would take you about one million, five hundred two thousand, nine hundred eleven 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 18906388910388 cubic inches would be around 2220 feet tall.

Recreational maths with 18906388910388

• 18906388910388 backwards is 88301988360981
• The number of decimal digits it has is: 14
• The sum of 18906388910388's digits is 72
• More coming soon!