12991215656162268

Names of 12991215656162268

• Cardinal: 12991215656162268 can be written as Twelve quadrillion, nine hundred ninety-one trillion, two hundred fifteen billion, six hundred fifty-six million, one hundred sixty-two thousand, two hundred sixty-eight.

Scientific notation

• Scientific notation: 1.2991215656162268 × 10¹⁶

Factors of 12991215656162268

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 231656

Divisors of 12991215656162268

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 31 36 42 62 63 84 93 124 126 186 217 252 279 372 434 558 651 868 961 1116 1302 1922 1953 2604 2883 3844 3906 5766 6727 7812 8649 11532 13454 17298 20181 26908 34596 40362 60543 80724 121086 231613 242172 463226 694839 926452 1389678 1621291 2084517 2779356 3242582 4169034 4863873 6485164 7180003 8338068 9727746 14360006 14591619 19455492 21540009 28720012 29183238 43080018 50260021 58366476 64620027 86160036 100520042 129240054 150780063 201040084 222580093 258480108 301560126 445160186 452340189 603120252 667740279 890320372 904680378 1335480558 1558060651 1809360756 2003220837 2670961116 3116121302 4006441674 4674181953 6232242604 8012883348 9348363906 14022545859 18696727812 28045091718 53644581769 56090183436 107289163538 160933745307 214578327076 321867490614 375512072383 482801235921 643734981228 751024144766 965602471842 1126536217149 1502048289532 1662982034839 1931204943684 2253072434298 3325964069678 3379608651447 4506144868596 4988946104517 6651928139356 6759217302894 9977892209034 11640874243873 13518434605788 14966838313551 19955784418068 23281748487746 29933676627102 34922622731619 46563496975492 51552443080009 59867353254204 69845245463238 103104886160018 104767868194857 139690490926476 154657329240027 206209772320036 209535736389714 309314658480054 360867101560063 419071472779428 463971987720081 618629316960108 721734203120126 927943975440162 1082601304680189 1443468406240252 1855887950880324 2165202609360378 3247803914040567 4330405218720756 6495607828081134 12991215656162268
• Sum of all divisors σ(n): 38780050173824232
• Sum of proper divisors (its aliquot sum) s(n): 25788834517661964
• 12991215656162268 is an abundant number, because the sum of its proper divisors (25788834517661964) is greater than itself. Its abundance is 12797618861499696

Bases of 12991215656162268

• Binary: 101110001001110111000100011010011000101101001111011100₂
• Hexadecimal: 0x2E27711A62D3DC
• Base-36: 3JX022YFI70

Squares and roots of 12991215656162268

• 12991215656162268 squared (12991215656162268²) is 168771684224915627500161946903824
• 12991215656162268 cubed (12991215656162268³) is 2192549346419598368914976636195595353868733712832
• The square root of 12991215656162268 is 113979014.1041861617
• The cube root of 12991215656162268 is 235080.4954735367

Scales and comparisons

• 12,991,215,656,162,268 seconds is equal to 413,080,473 years, 20 weeks, 4 days, 16 hours, 37 minutes, 48 seconds.
• To count from 1 to 12,991,215,656,162,268 would take you about one billion, two hundred thirty-nine million, two hundred forty-one thousand, four hundred twenty 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 12991215656162268 cubic inches would be around 19590 feet tall.

Recreational maths with 12991215656162268

• 12991215656162268 backwards is 86226165651219921
• The number of decimal digits it has is: 17
• The sum of 12991215656162268's digits is 72
• More coming soon!