18197587122

Names of 18197587122

• Cardinal: 18197587122 can be written as Eighteen billion, one hundred ninety-seven million, five hundred eighty-seven thousand, one hundred twenty-two.

Scientific notation

• Scientific notation: 1.8197587122 × 10¹⁰

Factors of 18197587122

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 293

Divisors of 18197587122

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 6 11 13 22 26 33 39 66 78 113 121 143 151 226 242 286 302 339 363 429 453 678 726 858 906 1243 1469 1573 1661 1963 2486 2938 3146 3322 3729 3926 4407 4719 4983 5889 7458 8814 9438 9966 11778 12769 13673 16159 17063 18271 21593 25538 27346 32318 34126 36542 38307 41019 43186 48477 51189 54813 64779 76614 82038 96954 102378 109626 129558 140459 165997 177749 187693 221819 237523 280918 331994 355498 375386 421377 443638 475046 497991 533247 563079 665457 712569 842754 995982 1066494 1126158 1330914 1425138 1545049 1825967 1928119 2064623 2440009 3090098 3651934 3856238 4129246 4635147 4880018 5477901 5784357 6193869 7320027 9270294 10955802 11568714 12387738 14640054 20085637 21209309 25065547 26840099 40171274 42418618 50131094 53680198 60256911 63627927 75196641 80520297 120513822 127255854 150393282 161040594 233302399 275721017 466604798 551442034 699907197 827163051 1399814394 1654326102 3032931187 6065862374 9098793561 18197587122
• Sum of all divisors σ(n): 43754378304
• Sum of proper divisors (its aliquot sum) s(n): 25556791182
• 18197587122 is an abundant number, because the sum of its proper divisors (25556791182) is greater than itself. Its abundance is 7359204060

Bases of 18197587122

• Binary: 10000111100101010010010010010110010₂
• Hexadecimal: 0x43CA924B2
• Base-36: 8CYDG36

Squares and roots of 18197587122

• 18197587122 squared (18197587122²) is 331152177062780242884
• 18197587122 cubed (18197587122³) is 6026170592739913533421910539848
• The square root of 18197587122 is 134898.4326150605
• The cube root of 18197587122 is 2630.2958662267

Scales and comparisons

• 18,197,587,122 seconds is equal to 578 years, 32 weeks, 4 days, 5 hours, 18 minutes, 42 seconds.
• To count from 1 to 18,197,587,122 would take you about one thousand, one hundred fifty-seven 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 18197587122 cubic inches would be around 219.2 feet tall.

Recreational maths with 18197587122

• 18197587122 backwards is 22178579181
• The number of decimal digits it has is: 11
• The sum of 18197587122's digits is 51
• More coming soon!