1681388546981913

Names of 1681388546981913

• Cardinal: 1681388546981913 can be written as One quadrillion, six hundred eighty-one trillion, three hundred eighty-eight billion, five hundred forty-six million, nine hundred eighty-one thousand, nine hundred thirteen.

Scientific notation

• Scientific notation: 1.681388546981913 × 10¹⁵

Factors of 1681388546981913

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 959

Divisors of 1681388546981913

• Number of divisors d(n): 360
• Complete list of divisors:
  1 3 7 9 11 21 27 31 33 63 77 81 93 99 121 189 217 231 279 297 341 363 567 651 693 837 847 891 907 961 1023 1089 1953 2079 2387 2511 2541 2721 2883 3069 3267 3751 5859 6237 6349 6727 7161 7623 8163 8649 9207 9801 9977 10571 11253 17577 19047 20181 21483 22869 24489 25947 26257 27621 28117 29791 29931 31713 33759 57141 60543 64449 68607 69839 73467 73997 77841 78771 84351 89373 89793 95139 101277 109747 116281 171423 181629 193347 196819 208537 209517 221991 236313 253053 268119 269379 285417 303831 309287 327701 329241 348843 514269 544887 590457 625611 628551 665973 708939 759159 768229 804357 808137 813967 822649 856251 871627 927861 983103 987723 1046529 1771371 1876833 1885653 1997919 2126817 2165009 2277477 2293907 2304687 2413071 2441901 2467947 2614881 2783583 2949309 2963169 3139587 3402157 3604711 5314113 5630499 5656959 5758543 5993757 6101389 6495027 6881721 6914061 7325703 7403841 7844643 8350749 8847927 8889507 9049139 9418761 9587897 10206471 10814133 15942339 16891497 17275629 18304167 19485081 20645163 20742183 21977109 22211523 23533929 23815099 25052247 25232977 25502119 26543781 27020437 27147417 28763691 30619413 32442399 51826887 54912501 58455243 61935489 62226549 63343973 65931327 66634569 67115279 70601787 71445297 75698931 76506357 81061311 81442251 86291073 91858239 97327197 99540529 105466867 155480661 164737503 175365729 178514833 185806467 189143059 190031919 201345837 214335891 227096793 229519071 243183933 244326753 258873219 275574717 280523309 291981591 297224807 298621587 316400601 466441983 494212509 535544499 567429177 570095757 604037511 643007673 681290379 688557213 696783703 729551799 732980259 738268069 776619657 790565689 841569927 891674421 895864761 949201803 1606633497 1702287531 1710287271 1812112533 1929023019 1963663163 2043871137 2065671639 2080573649 2090351109 2188655397 2214804207 2371697067 2524709781 2675023263 2687594283 2847605409 3085756399 3269472877 4819900491 5106862593 5130861813 5436337599 5533959823 5890989489 6241720947 6271053327 6644412621 7115091201 7574129343 8025069789 8062782849 8542816227 8696222579 9257269197 9808418631 14459701473 15320587779 16601879469 17672968467 18725162841 18813159981 19933237863 21345273603 21600294793 22722388029 22886310139 24075209367 24507536359 26088667737 27771807591 29425255893 49805638407 53018905401 56175488523 56439479943 59799713589 60873558053 64035820809 64800884379 68658930417 73522609077 78266003211 83315422773 88275767679 95658448369 149416915221 159056716203 168526465569 171552754513 182620674159 194402653137 205976791251 220567827231 234798009633 249946268319 264827303037 269582899949 286975345107 448250745663 514658263539 547862022477 583207959411 617930373753 661703481693 669609138583 704394028899 808748699847 860926035321 1543974790617 1643586067431 1749623878233 1853791121259 1887080299643 1985110445079 2008827415749 2426246099541 2582778105963 2965411899439 4631924371851 4930758202293 5661240898929 6026482247247 7278738298623 7748334317889 8896235698317 13895773115553 16983722696787 18079446741741 20757883296073 21836214895869 26688707094951 50951168090361 54238340225223 62273649888219 80066121284853 152853504271083 186820949664657 240198363854559 560462848993971 1681388546981913
• Sum of all divisors σ(n): 3263966641807872
• Sum of proper divisors (its aliquot sum) s(n): 1582578094825959
• 1681388546981913 is a deficient number, because the sum of its proper divisors (1582578094825959) is less than itself. Its deficiency is 98810452155954

Bases of 1681388546981913

• Binary: 101111110010011011011000111000100101000000000011001₂
• Hexadecimal: 0x5F936C7128019
• Base-36: GK038GPGK9

Squares and roots of 1681388546981913

• 1681388546981913 squared (1681388546981913²) is 2827067445921948659701149139569
• 1681388546981913 cubed (1681388546981913³) is 4753398825118573163449122320602206431755615497
• The square root of 1681388546981913 is 41004738.1040522315
• The cube root of 1681388546981913 is 118911.1816825315

Scales and comparisons

• 1,681,388,546,981,913 seconds is equal to 53,462,954 years, 47 weeks, 5 days, 1 hour, 38 minutes, 33 seconds.
• To count from 1 to 1,681,388,546,981,913 would take you about one hundred sixty million, three hundred eighty-eight thousand, eight hundred sixty-four 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 1681388546981913 cubic inches would be around 9909.3 feet tall.

Recreational maths with 1681388546981913

• 1681388546981913 backwards is 3191896458831861
• 1681388546981913 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1681388546981913's digits is 81
• More coming soon!