1640509460746821

Names of 1640509460746821

• Cardinal: 1640509460746821 can be written as One quadrillion, six hundred forty trillion, five hundred nine billion, four hundred sixty million, seven hundred forty-six thousand, eight hundred twenty-one.

Scientific notation

• Scientific notation: 1.640509460746821 × 10¹⁵

Factors of 1640509460746821

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 698

Divisors of 1640509460746821

• Number of divisors d(n): 576
• Complete list of divisors:
  1 3 7 9 21 31 61 63 79 89 93 97 183 217 237 267 279 291 331 427 549 553 623 651 679 711 801 873 993 1281 1659 1869 1891 1953 2037 2317 2449 2759 2979 3007 3721 3843 4819 4977 5429 5607 5673 5917 6111 6951 7031 7347 7663 8277 8633 9021 10261 11163 13237 14457 16287 17019 17143 17751 19313 20191 20853 21049 21093 22041 22989 24831 25899 26047 26149 27063 29459 30783 32107 33489 33733 38003 39711 41419 43371 48861 49217 51429 53253 53641 57939 60431 60573 63147 63279 68967 71827 77697 78141 78447 88377 92349 96321 101199 114009 115351 119133 124257 141337 147651 149389 154287 160923 168299 173817 181293 181719 183043 183427 189441 206213 215481 217961 224749 234423 235341 237553 265131 267623 288963 293959 303597 331169 342027 346053 360937 372771 424011 428891 442953 448167 467443 482769 504897 526613 543879 549129 550281 618639 625921 646443 653883 674247 682007 712659 802869 807457 810619 881877 913229 993507 995317 1038159 1045723 1082811 1178093 1231651 1272033 1283989 1286673 1344501 1402329 1514691 1525727 1579839 1595089 1647387 1650843 1662871 1796999 1855917 1873361 1877763 1958527 1961649 2022741 2046021 2057713 2137977 2318183 2327261 2408607 2422371 2431857 2526559 2536453 2645631 2739687 2857523 2980521 2985951 3002237 3137169 3248433 3272101 3534279 3686291 3694953 3851967 3860019 4206987 4381447 4577181 4739517 4774049 4785267 4988613 5390997 5620083 5633289 5674333 5875581 6138063 6173139 6392603 6954549 6967219 6981783 7267113 7295571 7579677 7609359 8219061 8572569 8621557 8957853 9006711 9112729 9411507 9816303 10266239 10602837 11058873 11084859 11165623 11189047 11555901 12578993 13144341 13295621 13709689 13731543 14322147 14355801 14490733 14965839 16172991 16290827 16325003 16860249 17022999 17626743 17755171 18519417 19177809 20002661 20863647 20901657 20945349 21142217 22739031 22828077 25717707 25864671 26162351 27020133 27338187 28514023 29448909 30798717 32123393 33176619 33496869 33567141 37736979 38181181 39433023 39886863 41129067 41602427 42966441 43472199 48872481 48975009 49447759 51068997 53265513 55706969 57533427 60007983 60714337 62704971 63426651 63789103 71863673 72145091 77594013 78323329 78487053 78630043 82014561 85542069 88583213 92396151 93069347 96370179 97300429 100490607 100701423 101435131 109616939 113210937 114275021 114543543 119470147 119660589 123387201 124807281 130416597 141962921 146617443 146925027 147995519 148343277 154723633 159796539 167120907 174308903 180023949 182143011 183136457 190279953 191367309 199598161 215591019 216435273 224863751 225744317 234969987 235461159 235890129 256626207 265749639 267268267 279208041 289110537 291216989 291901287 304305393 328850817 342825063 343630629 346134313 358410441 374421843 389948783 425000359 425888763 443986557 445029831 464170899 501362721 505015637 522926709 546429033 549409371 550410301 574101927 598794483 620082491 646773057 649305819 674591253 677232951 681103003 704909961 707670387 767318573 797248917 801804801 811032881 836291029 837624123 873650967 875703861 883934713 912916179 986552451 993740447 995825183 1028475189 1038402939 1075231323 1083065431 1169846349 1220162321 1275001077 1277666289 1289675237 1331959671 1392512697 1515046911 1568780127 1580210219 1648228113 1651230903 1796383449 1860247473 2023773759 2031698853 2043309009 2301955719 2405414403 2433098643 2508873087 2537748047 2620952901 2651804139 2981221341 2987475549 3016313299 3115208817 3249196293 3398125109 3509539047 3660486963 3703574557 3825003231 3869025711 4400850551 4545140733 4740630657 4796432623 4953692709 5403575993 5580742419 5677230167 6129927027 6187542991 6905867157 6970776281 6998073827 7299295929 7526619261 7613244141 7955412417 8659738181 8943664023 8962426647 9027726659 9048939897 9438141613 9747588879 10194375327 10632843083 10981460889 11110723671 11607077133 13202551653 13770403337 14221891971 14389297869 16210727979 17031690501 17764236329 18562628973 20912328843 20994221481 21114193093 22839732423 23786875763 25925021899 25979214543 27083179977 27146819691 28314424839 30583125981 30805953857 31898529249 33332171013 33575028361 37825031951 39607654959 41311210011 43167893607 48632183937 48986516789 51095071503 53292708987 55687886919 60618167267 62736986529 62982664443 63342579279 66066991291 71360627289 74429901581 77775065697 77937643629 78670189457 81249539931 84943274517 92417861571 95695587747 96392823359 100725085083 113475095853 123933630033 146959550367 159878126961 181854501801 190027737837 198200973873 214081881867 223289704743 233325197091 236010568371 268451883611 277253584713 289178470077 292582390003 302175255249 329618135573 340425287559 426882503447 440878651101 545563505403 550691326199 594602921619 669869114229 708031705113 805355650833 839994603557 867535410231 877747170009 988854406719 1280647510341 1652073978597 1879163185277 2048076730021 2307326949011 2416066952499 2519983810671 2633241510027 2966563220157 2988177524129 3841942531023 4956221935791 5637489555831 5879962224899 6144230190063 6921980847033 7559951432013 8964532572387 16912468667493 17639886674697 18432690570189 20765942541099 26039832710267 26893597717161 52919660024091 78119498130801 182278828971869 234358494392403 546836486915607 1640509460746821
• Sum of all divisors σ(n): 2949282098380800
• Sum of proper divisors (its aliquot sum) s(n): 1308772637633979
• 1640509460746821 is a deficient number, because the sum of its proper divisors (1308772637633979) is less than itself. Its deficiency is 331736823112842

Bases of 1640509460746821

• Binary: 101110101000000100011011111101010001001001001000101₂
• Hexadecimal: 0x5D408DFA89245
• Base-36: G5IFN489J9

Squares and roots of 1640509460746821

• 1640509460746821 squared (1640509460746821²) is 2691271290799825431411061606041
• 1640509460746821 cubed (1640509460746821³) is 4415056013993422503244844141864894087545145661
• The square root of 1640509460746821 is 40503203.0924323441
• The cube root of 1640509460746821 is 117939.5807884963

Scales and comparisons

• 1,640,509,460,746,821 seconds is equal to 52,163,126 years, 21 weeks, 6 days, 21 hours, 40 minutes, 21 seconds.
• To count from 1 to 1,640,509,460,746,821 would take you about one hundred fifty-six million, four hundred eighty-nine thousand, three hundred seventy-nine 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 1640509460746821 cubic inches would be around 9828.3 feet tall.

Recreational maths with 1640509460746821

• 1640509460746821 backwards is 1286470649050461
• 1640509460746821 is a Harshad number.
• The number of decimal digits it has is: 16
• The sum of 1640509460746821's digits is 63
• More coming soon!