18688944912

Names of 18688944912

• Cardinal: 18688944912 can be written as Eighteen billion, six hundred eighty-eight million, nine hundred forty-four thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.8688944912 × 10¹⁰

Factors of 18688944912

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2403

Divisors of 18688944912

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 33 44 48 66 73 88 132 146 176 219 233 264 292 438 466 528 584 699 803 876 932 1168 1398 1606 1752 1864 2081 2409 2563 2796 3212 3504 3728 4162 4818 5126 5592 6243 6424 7689 8324 9636 10252 11184 12486 12848 15378 16648 17009 19272 20504 22891 24972 30756 33296 34018 38544 41008 45782 49944 51027 61512 68036 68673 91564 99888 102054 123024 136072 137346 151913 183128 187099 204108 272144 274692 303826 366256 374198 408216 455739 484873 549384 561297 607652 748396 816432 911478 969746 1098768 1122594 1215304 1454619 1496792 1671043 1822956 1939492 2245188 2430608 2909238 2993584 3342086 3645912 3878984 4490376 5013129 5333603 5818476 6684172 7291824 7757968 8980752 10026258 10667206 11636952 13368344 16000809 20052516 21334412 23273904 26736688 32001618 35395729 40105032 42668824 64003236 70791458 80210064 85337648 106187187 128006472 141582916 212374374 256012944 283165832 389353019 424748748 566331664 778706038 849497496 1168059057 1557412076 1698994992 2336118114 3114824152 4672236228 6229648304 9344472456 18688944912
• Sum of all divisors σ(n): 53645245056
• Sum of proper divisors (its aliquot sum) s(n): 34956300144
• 18688944912 is an abundant number, because the sum of its proper divisors (34956300144) is greater than itself. Its abundance is 16267355232

Bases of 18688944912

• Binary: 10001011001111100101010101100010000₂
• Hexadecimal: 0x459F2AB10
• Base-36: 8L2WY6O

Squares and roots of 18688944912

• 18688944912 squared (18688944912²) is 349276661923770687744
• 18688944912 cubed (18688944912³) is 6527612293740598326567969558528
• The square root of 18688944912 is 136707.5159309099
• The cube root of 18688944912 is 2653.7597001477

Scales and comparisons

• 18,688,944,912 seconds is equal to 594 years, 13 weeks, 5 hours, 35 minutes, 12 seconds.
• To count from 1 to 18,688,944,912 would take you about one thousand, one hundred eighty-eight 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 18688944912 cubic inches would be around 221.1 feet tall.

Recreational maths with 18688944912

• 18688944912 backwards is 21944988681
• The number of decimal digits it has is: 11
• The sum of 18688944912's digits is 60
• More coming soon!