12911211553499721

Names of 12911211553499721

• Cardinal: 12911211553499721 can be written as Twelve quadrillion, nine hundred eleven trillion, two hundred eleven billion, five hundred fifty-three million, four hundred ninety-nine thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 1.2911211553499721 × 10¹⁶

Factors of 12911211553499721

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 263971

Divisors of 12911211553499721

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 7 9 11 21 33 49 63 73 77 99 127 147 219 231 381 441 511 539 657 693 803 889 1093 1143 1397 1533 1617 2409 2667 3279 3577 4191 4599 4851 5621 6223 7227 7651 8001 9271 9779 9837 10731 12023 12573 16863 18669 22953 27813 29337 32193 36069 39347 50589 53557 56007 64897 68453 68859 79789 83439 84161 88011 101981 108207 118041 138811 160671 194691 205359 239367 252483 262657 305943 354123 416433 454279 482013 558523 584073 589127 616077 713867 718101 757449 787971 877679 917829 971677 1249299 1362837 1526921 1675569 1767381 1838599 2141601 2363913 2633037 2889227 2915031 3909661 4088511 4580763 4997069 5026707 5302143 5515797 6143753 6424803 6801739 7899111 8667681 8745093 10133203 10688447 11728983 12870193 13742289 14991207 16547391 18431259 19173961 20224589 20405217 26003043 30399609 32065341 33357439 35186949 38610579 43006271 44973621 55293777 57521883 60673767 61215651 70932421 74819129 91198827 96196023 100072317 111465233 115831737 129018813 134217727 141572123 172565649 182021301 210913571 212797263 224457387 233502073 287084101 300216951 334395699 366931829 387056439 402653181 424716369 496526947 632740713 638391789 673372161 700506219 780256631 861252303 939524089 1003187097 1100795487 1207959543 1274149107 1476394997 1489580841 1634514511 1898222139 2009588707 2101518657 2340769893 2435093047 2568522803 2583756909 2818572267 3157925111 3302386461 4429184991 4468742523 4903543533 5461796417 6028766121 7022309679 7305279141 7705568409 8455716801 9473775333 10334764979 13287554973 14067120949 14710630599 16385389251 17045651329 17979659621 18086298363 20957139373 21915837423 22105475777 23116705227 26786023517 28421325999 31004294937 36459680827 42201362847 49156167753 51136953987 53938978863 62871418119 66316427331 80358070551 93012884811 109379042481 119319559303 126604088541 146699975611 153410861961 154738330439 161816936589 187502164619 188614254357 198949281993 230528533103 241074211653 255217765789 328137127443 357958677909 401056489097 440099926833 464214991317 562506493857 691585599309 765653297367 1026899829277 1073876033727 1203169467291 1312515152333 1320299780499 1392644973951 1613699731721 1687519481571 1786524360523 2074756797927 2296959892101 2661556700371 2807395423679 3080699487831 3609508401873 3937545456999 4841099195163 5359573081569 7984670101113 8422186271037 9242098463493 11295898122047 11812636370997 14523297585489 16078719244707 18630896902597 19651767965753 23954010303339 25266558813111 29277123704081 33887694366141 55892690707791 58955303897259 87831371112243 101663083098423 130416278318179 167678072123373 176865911691777 204939865928567 263494113336729 391248834954537 614819597785701 1173746504863611 1434579061499969 1844458793357103 4303737184499907 12911211553499721
• Sum of all divisors σ(n): 24201879731048448
• Sum of proper divisors (its aliquot sum) s(n): 11290668177548727
• 12911211553499721 is a deficient number, because the sum of its proper divisors (11290668177548727) is less than itself. Its deficiency is 1620543375950994

Bases of 12911211553499721

• Binary: 101101110111101010110110110010010001000010101001001001₂
• Hexadecimal: 0x2DDEADB2442A49
• Base-36: 3J4N4PDCLS9

Squares and roots of 12911211553499721

• 12911211553499721 squared (12911211553499721²) is 166699383779224678906203147077841
• 12911211553499721 cubed (12911211553499721³) is 2152291009811609658438023411684065652357958782361
• The square root of 12911211553499721 is 113627512.3088581967
• The cube root of 12911211553499721 is 234596.9342585077

Scales and comparisons

• 12,911,211,553,499,721 seconds is equal to 410,536,590 years, 20 weeks, 6 days, 5 hours, 55 minutes, 21 seconds.
• To count from 1 to 12,911,211,553,499,721 would take you about one billion, two hundred thirty-one million, six hundred nine thousand, seven hundred seventy-one 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 12911211553499721 cubic inches would be around 19549.7 feet tall.

Recreational maths with 12911211553499721

• 12911211553499721 backwards is 12799435511211921
• 12911211553499721 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 12911211553499721's digits is 63
• More coming soon!