1821455897115816

Names of 1821455897115816

• Cardinal: 1821455897115816 can be written as One quadrillion, eight hundred twenty-one trillion, four hundred fifty-five billion, eight hundred ninety-seven million, one hundred fifteen thousand, eight hundred sixteen.

Scientific notation

• Scientific notation: 1.821455897115816 × 10¹⁵

Factors of 1821455897115816

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 11941

Divisors of 1821455897115816

• Number of divisors d(n): 336
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 81 104 108 117 156 162 169 216 234 243 312 324 338 351 468 486 507 648 676 702 729 936 972 1014 1053 1352 1404 1458 1521 1944 2028 2106 2197 2808 2916 3042 3159 4056 4212 4394 4563 5832 6084 6318 6591 8424 8788 9126 9477 11923 12168 12636 13182 13689 17576 18252 18954 19773 23846 25272 26364 27378 35769 36504 37908 39546 41067 47692 52728 54756 59319 71538 75816 79092 82134 95384 107307 109512 118638 123201 143076 154999 158184 164268 177957 214614 237276 246402 286152 309998 321921 328536 355914 429228 464997 474552 492804 533871 619996 643842 711828 858456 929994 965763 985608 1067742 1239992 1287684 1394991 1423656 1601613 1859988 1931526 2014987 2135484 2575368 2789982 2897289 3203226 3719976 3863052 4029974 4184973 4270968 5579964 5794578 6044961 6406452 7726104 8059948 8369946 8691867 11159928 11589156 12089922 12554919 12812904 16119896 16739892 17383734 18134883 23178312 24179844 25109838 26194831 33479784 34767468 36269766 37664757 48359688 50219676 52389662 54404649 69534936 72539532 75329514 78584493 100439352 104779324 108809298 112994271 142157929 145079064 150659028 157168986 163213947 209558648 217618596 225988542 235753479 284315858 301318056 314337972 326427894 426473787 435237192 451977084 471506958 489641841 568631716 628675944 652855788 707260437 852947574 903954168 943013916 979283682 1137263432 1279421361 1305711576 1414520874 1468925523 1705895148 1848053077 1886027832 1958567364 2121781311 2558842722 2829041748 2937851046 3411790296 3696106154 3838264083 3917134728 4243562622 5117685444 5544159231 5658083496 5875702092 6365343933 7392212308 7676528166 8487125244 10235370888 11088318462 11514792249 11751404184 12730687866 14784424616 15353056332 16632477693 16974250488 19096031799 22176636924 23029584498 24024690001 25461375732 30706112664 33264955386 34544376747 38192063598 44353273848 46059168996 48049380002 49897433079 50922751464 66529910772 69088753494 72074070003 76384127196 92118337992 96098760004 99794866158 103633130241 133059821544 138177506988 144148140006 149692299237 152768254392 192197520008 199589732316 207266260482 216222210009 276355013976 288296280012 299384598474 312320970013 399179464632 414532520964 432444420018 449076897711 576592560024 598769196948 624641940026 648666630027 829065041928 864888840036 898153795422 936962910039 1197538393896 1249283880052 1297333260054 1347230693133 1729777680072 1796307590844 1873925820078 1945999890081 2498567760104 2594666520108 2694461386266 2810888730117 3592615181688 3747851640156 3891999780162 5189333040216 5388922772532 5621777460234 5837999670243 7495703280312 7783999560324 8432666190351 10777845545064 11243554920468 11675999340486 15567999120648 16865332380702 17513999010729 22487109840936 23351998680972 25297998571053 33730664761404 35027998021458 46703997361944 50595997142106 67461329522808 70055996042916 75893995713159 101191994284212 140111992085832 151787991426318 202383988568424 227681987139477 303575982852636 455363974278954 607151965705272 910727948557908 1821455897115816
• Sum of all divisors σ(n): 5547481881045300
• Sum of proper divisors (its aliquot sum) s(n): 3726025983929484
• 1821455897115816 is an abundant number, because the sum of its proper divisors (3726025983929484) is greater than itself. Its abundance is 1904570086813668

Bases of 1821455897115816

• Binary: 110011110001001101010111111101110001011110010101000₂
• Hexadecimal: 0x6789ABFB8BCA8
• Base-36: HXNHACJMI0

Squares and roots of 1821455897115816

• 1821455897115816 squared (1821455897115816²) is 3317701585137982081347317345856
• 1821455897115816 cubed (1821455897115816³) is 6043047117120067947534745417473120618559658496
• The square root of 1821455897115816 is 42678517.9817178749
• The cube root of 1821455897115816 is 122125.4621076311

Scales and comparisons

• 1,821,455,897,115,816 seconds is equal to 57,916,663 years, 20 weeks, 3 days, 21 hours, 3 minutes, 36 seconds.
• To count from 1 to 1,821,455,897,115,816 would take you about one hundred seventy-three million, seven hundred forty-nine thousand, nine hundred ninety 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 1821455897115816 cubic inches would be around 10177.1 feet tall.

Recreational maths with 1821455897115816

• 1821455897115816 backwards is 6185117985541281
• 1821455897115816 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1821455897115816's digits is 72
• More coming soon!