12981446478

Names of 12981446478

• Cardinal: 12981446478 can be written as Twelve billion, nine hundred eighty-one million, four hundred forty-six thousand, four hundred seventy-eight.

Scientific notation

• Scientific notation: 1.2981446478 × 10¹⁰

Factors of 12981446478

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 255

Divisors of 12981446478

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 3 6 7 9 11 13 14 18 21 22 26 27 31 33 39 42 54 61 62 63 66 77 78 91 93 99 117 122 126 127 143 154 182 183 186 189 198 217 231 234 254 273 279 286 297 341 351 366 378 381 403 427 429 434 462 546 549 558 594 651 671 682 693 702 762 793 806 819 837 854 858 889 1001 1023 1098 1143 1209 1281 1287 1302 1342 1386 1397 1586 1638 1647 1651 1674 1778 1891 1953 2002 2013 2046 2079 2286 2379 2387 2418 2457 2562 2574 2667 2794 2821 3003 3069 3294 3302 3429 3627 3782 3843 3861 3906 3937 4026 4158 4191 4433 4697 4758 4774 4914 4953 5334 5551 5642 5673 5859 6006 6039 6138 6858 7137 7161 7254 7686 7722 7747 7874 8001 8382 8463 8723 8866 9009 9207 9394 9779 9906 10881 11102 11346 11529 11557 11718 11811 12078 12573 13237 13299 14091 14274 14322 14859 15494 16002 16653 16926 17019 17446 18018 18117 18161 18414 19558 20801 21411 21483 21762 23058 23114 23241 23622 24003 24583 25146 25389 26169 26474 26598 27027 27559 28182 29337 29718 31031 33306 34038 34671 35433 36234 36322 37719 39711 39897 41602 42273 42822 42966 43307 44577 46482 48006 49166 49959 50778 51057 51181 52338 54054 54229 54483 55118 58674 61061 62062 62403 64449 69342 69723 70866 73749 75438 76167 78507 79422 79794 82677 84546 85217 86614 88011 89154 93093 99918 100711 102114 102362 104013 106299 108458 108966 119133 119691 122122 124806 126819 127127 128898 129921 139446 145607 147498 149877 152334 153543 157014 162687 163449 165354 170434 172081 176022 183183 186186 187209 201422 208026 209169 212598 221247 235521 238266 239382 240157 248031 253638 254254 255651 259842 264033 270413 279279 291214 299754 302133 303149 307086 312039 325374 326898 344162 357399 358267 366366 374418 381381 389763 418338 436821 442494 460629 471042 480314 488061 490347 496062 511302 516243 528066 540826 549549 558558 561627 562991 596519 604266 606298 624078 663741 704977 714798 716534 720471 744093 762762 766953 779526 811239 837837 873642 906399 909447 921258 976122 980694 1032486 1074801 1099098 1107821 1123254 1125982 1144143 1169289 1193038 1310463 1327482 1381887 1409954 1440942 1464183 1488186 1533906 1548729 1622478 1648647 1675674 1681099 1688973 1789557 1812798 1818894 1892891 2114931 2149602 2161413 2215642 2288286 2300859 2338578 2433717 2620926 2641727 2719197 2728341 2763774 2928366 3097458 3122041 3224403 3297294 3323463 3362198 3377946 3432429 3579114 3785782 3931389 3940937 4229862 4322826 4601718 4646187 4867434 5043297 5066919 5283454 5368671 5438394 5456682 5678673 6244082 6344793 6448806 6484239 6646926 6864858 7301151 7754747 7862778 7881874 7925181 8185023 9292374 9366123 9673209 9970389 10086594 10133838 10737342 11357346 11822811 12689586 12968478 14602302 15129891 15200757 15509494 15850362 16106013 16370046 17036019 18492089 18732246 19034379 19346418 19940778 21854287 23264241 23645622 23775543 28098369 29911167 30259782 30401514 32212026 34072038 34342451 35468433 36984178 38068758 43708574 45389673 46528482 47551086 51108057 55476267 56196738 59822334 65562861 68684902 69792723 70936866 71326629 84295107 90779346 102216114 103027353 106405299 110952534 131125722 139585446 142653258 166428801 168590214 196688583 206054706 209378169 212810598 240397157 309082059 332857602 393377166 418756338 480794314 499286403 590065749 618164118 721191471 927246177 998572806 1180131498 1442382942 1854492354 2163574413 4327148826 6490723239 12981446478
• Sum of all divisors σ(n): 40957378560
• Sum of proper divisors (its aliquot sum) s(n): 27975932082
• 12981446478 is an abundant number, because the sum of its proper divisors (27975932082) is greater than itself. Its abundance is 14994485604

Bases of 12981446478

• Binary: 1100000101110000010010011101001110₂
• Hexadecimal: 0x305C1274E
• Base-36: 5YOTG7I

Squares and roots of 12981446478

• 12981446478 squared (12981446478²) is 168517952661178604484
• 12981446478 cubed (12981446478³) is 2187606783053227722507776807352
• The square root of 12981446478 is 113936.1508828521
• The cube root of 12981446478 is 2350.2155515575

Scales and comparisons

• 12,981,446,478 seconds is equal to 412 years, 40 weeks, 5 hours, 21 minutes, 18 seconds.
• To count from 1 to 12,981,446,478 would take you about eight hundred twenty-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 12981446478 cubic inches would be around 195.9 feet tall.

Recreational maths with 12981446478

• 12981446478 backwards is 87464418921
• 12981446478 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12981446478's digits is 54
• More coming soon!