12991720791604464

Names of 12991720791604464

• Cardinal: 12991720791604464 can be written as Twelve quadrillion, nine hundred ninety-one trillion, seven hundred twenty billion, seven hundred ninety-one million, six hundred four thousand, four hundred sixty-four.

Scientific notation

• Scientific notation: 1.2991720791604464 × 10¹⁶

Factors of 12991720791604464

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 364095781

Divisors of 12991720791604464

• Number of divisors d(n): 360
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 36 39 42 48 49 52 56 63 72 78 84 91 98 104 112 117 126 144 147 156 168 182 196 208 234 252 273 294 312 336 364 389 392 441 468 504 546 588 624 637 728 778 784 819 882 936 1008 1092 1167 1176 1274 1456 1556 1638 1764 1872 1911 2184 2334 2352 2548 2723 3112 3276 3501 3528 3822 4368 4668 5057 5096 5446 5733 6224 6552 7002 7056 7644 8169 9336 10114 10192 10892 11466 13104 14004 15171 15288 16338 18672 19061 20228 21784 22932 24507 28008 30342 30576 32676 35399 38122 40456 43568 45513 45864 49014 56016 57183 60684 65352 70798 76244 80912 91026 91728 98028 106197 114366 121368 130704 141596 152488 171549 182052 196056 212394 228732 242736 247793 283192 304976 318591 343098 364104 392112 424788 457464 495586 566384 637182 686196 728208 743379 849576 914928 991172 1274364 1372392 1486758 1699152 1982344 2230137 2548728 2744784 2973516 3964688 4460274 5097456 5947032 8920548 11894064 17841096 35682192 364095367 728190734 1092286101 1456381468 2184572202 2548667569 2912762936 3276858303 4369144404 4733239771 5097335138 5825525872 6553716606 7646002707 8738288808 9466479542 10194670276 13107433212 14199719313 15292005414 17476577616 17840672983 18932959084 20389340552 22938008121 26214866424 28399438626 30584010828 33132678397 35681345966 37865918168 40778681104 42599157939 45876016242 52429732848 53522018949 56798877252 61168021656 66265356794 71362691932 75731836336 85198315878 91752032484 99398035191 107044037898 113597754504 122336043312 132530713588 141633097763 142725383864 160566056847 170396631756 183504064968 198796070382 214088075796 227195509008 231928748779 265061427176 283266195526 285450767728 298194105573 321132113694 340793263512 367008129936 397592140764 424899293289 428176151592 463857497558 530122854352 566532391052 596388211146 642264227388 681586527024 695786246337 795184281528 849798586578 856352303184 927714995116 991431684341 1133064782104 1192776422292 1274697879867 1284528454776 1391572492674 1590368563056 1699597173156 1841230270919 1855429990232 1982863368682 2087358739011 2266129564208 2385552844584 2549395759734 2569056909552 2783144985348 2974295053023 3399194346312 3682460541838 3710859980464 3965726737364 4174717478022 4771105689168 5098791519468 5523690812757 5566289970696 5948590106046 6798388692624 6940021790387 7364921083676 7931453474728 8349434956044 8922885159069 10197583038936 11047381625514 11132579941392 11897180212092 12888611896433 13880043580774 14729842167352 15862906949456 16571072438271 16698869912088 17845770318138 20395166077872 20820065371161 22094763251028 23794360424184 25777223792866 27760087161548 29459684334704 33142144876542 33397739824176 35691540636276 38665835689299 41640130742322 44189526502056 47588720848368 51554447585732 55520174323096 62460196113483 66284289753084 71383081272552 77331671378598 83280261484644 88379053004112 90220283275031 103108895171464 111040348646192 115997507067897 124920392226966 132568579506168 142766162545104 154663342757196 166560522969288 180440566550062 206217790342928 231995014135794 249840784453932 265137159012336 270660849825093 309326685514392 333121045938576 360881133100124 463990028271588 499681568907864 541321699650186 618653371028784 721762266200248 811982549475279 927980056543176 999363137815728 1082643399300372 1443524532400496 1623965098950558 1855960113086352 2165286798600744 3247930197901116 4330573597201488 6495860395802232 12991720791604464
• Sum of all divisors σ(n): 45665445452870880
• Sum of proper divisors (its aliquot sum) s(n): 32673724661266416
• 12991720791604464 is an abundant number, because the sum of its proper divisors (32673724661266416) is greater than itself. Its abundance is 19682003869661952

Bases of 12991720791604464

• Binary: 101110001001111110011010110110110011011111110011110000₂
• Hexadecimal: 0x2E27E6B6CDFCF0
• Base-36: 3JX6I4Z13W0

Squares and roots of 12991720791604464

• 12991720791604464 squared (12991720791604464²) is 168784809127007720713787424727296
• 12991720791604464 cubed (12991720791604464³) is 2192805114042337105678981041077497750311496249344
• The square root of 12991720791604464 is 113981229.9968923127
• The cube root of 12991720791604464 is 235083.5423003087

Scales and comparisons

• 12,991,720,791,604,464 seconds is equal to 413,096,535 years, 7 weeks, 2 days, 17 hours, 14 minutes, 24 seconds.
• To count from 1 to 12,991,720,791,604,464 would take you about one billion, two hundred thirty-nine million, two hundred eighty-nine thousand, six hundred five 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 12991720791604464 cubic inches would be around 19590.3 feet tall.

Recreational maths with 12991720791604464

• 12991720791604464 backwards is 46440619702719921
• 12991720791604464 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 12991720791604464's digits is 72
• More coming soon!