642728794448979

Names of 642728794448979

• Cardinal: 642728794448979 can be written as Six hundred forty-two trillion, seven hundred twenty-eight billion, seven hundred ninety-four million, four hundred forty-eight thousand, nine hundred seventy-nine.

Scientific notation

• Scientific notation: 6.42728794448979 × 10¹⁴

Factors of 642728794448979

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 19
• Sum of prime factors: 117

Divisors of 642728794448979

• Number of divisors d(n): 504
• Complete list of divisors:
  1 3 7 9 21 27 29 31 47 63 81 87 93 141 189 203 217 243 261 279 329 423 567 609 651 729 783 837 841 899 987 1269 1363 1457 1701 1827 1953 2187 2209 2349 2511 2523 2697 2961 3807 4089 4371 5103 5481 5859 5887 6293 6561 6627 7047 7533 7569 8091 8883 9541 10199 11421 12267 13113 15309 15463 16443 17577 17661 18879 19683 19881 21141 22599 22707 24273 26071 26649 28623 30597 34263 36801 39339 39527 42253 45927 46389 49329 52731 52983 56637 59049 59643 63423 64061 67797 68121 68479 72819 78213 79947 85869 91791 102789 110403 118017 118581 126759 137781 139167 147987 158193 158949 169911 177147 178929 182497 190269 192183 203391 204363 205437 218457 234639 239841 257607 275373 276689 295771 308367 331209 354051 355743 380277 413343 417501 443961 448427 474579 476847 479353 509733 531441 536787 547491 570807 576549 610173 613089 616311 655371 703917 719523 772821 826119 830067 887313 925101 993627 1062153 1067229 1140831 1225337 1240029 1252503 1331883 1345281 1423737 1430541 1438059 1529199 1594323 1610361 1642473 1712421 1729647 1830519 1839267 1848933 1857769 1966113 1985891 2111751 2158569 2318463 2478357 2490201 2661939 2775303 2980881 3186459 3201687 3422493 3676011 3720087 3757509 3995649 4035843 4271211 4291623 4314177 4587597 4831083 4927419 5137263 5188941 5491557 5517801 5546799 5573307 5898339 5957673 6335253 6475707 6955389 7435071 7470603 7985817 8325909 8577359 8942643 9559377 9605061 10267479 11028033 11160261 11272527 11986947 12107529 12813633 12874869 12942531 13004383 13762791 13901237 14493249 14782257 15411789 15566823 16474671 16553403 16640397 16719921 17695017 17873019 19005759 19427121 20866167 22305213 22411809 23957451 24977727 25732077 26827929 28678131 28815183 30802437 33084099 33817581 35960841 36322587 38440899 38624607 38827593 39013149 41288373 41703711 43479747 44346771 46235367 46700469 49424013 49660209 49921191 50159763 53085051 53619057 57017277 57590839 58281363 62598501 66915639 67235427 71872353 74933181 77196231 80483787 86034393 86445549 92407311 99252297 101452743 107882523 108967761 115322697 115873821 116482779 117039447 123865119 125111133 130439241 133040313 140101407 148980627 149763573 150479289 159255153 160857171 171051831 172772517 174844089 187795503 200746917 201706281 215617059 231588693 241451361 258103179 259336647 277221933 297756891 304358229 323647569 326903283 345968091 347621463 349448337 351118341 371595357 375333399 391317723 399120939 403135873 420304221 446941881 449290719 451437867 477765459 482571513 513155493 518317551 524532267 563386509 602240751 605118843 646851177 694766079 724354083 774309537 778009941 831665799 893270673 913074687 980709849 1042864389 1048345011 1053355023 1114786071 1126000197 1173953169 1197362817 1209407619 1260912663 1340825643 1347872157 1354313601 1433296377 1447714539 1539466479 1554952653 1690159527 1806722253 1815356529 1940553531 2084298237 2173062249 2322928611 2334029823 2494997397 2679812019 2739224061 2942129547 3128593167 3145035033 3160065069 3344358213 3378000591 3521859507 3592088451 3628222857 3782737989 4043616471 4062940803 4343143617 4618399437 4664857959 5070478581 5420166759 5446069587 5821660593 6252894711 7002089469 7484992191 8039436057 8217672183 8826388641 9385779501 9435105099 9480195207 10033074639 10134001773 10776265353 10884668571 11348213967 12130849413 12188822409 13029430851 13855198311 13994573877 15211435743 16260500277 16338208761 17464981779 18758684133 21006268407 22454976573 24118308171 24653016549 26479165923 28305315297 28440585621 30402005319 32328796059 32654005713 34044641901 36392548239 36566467227 39088292553 41565594933 41983721631 49014626283 52394945337 56276052399 63018805221 67364929719 72354924513 79437497769 84915945891 85321756863 91206015957 96986388177 97962017139 102133925703 109177644717 109699401681 117264877659 125951164893 147043878849 157184836011 168828157197 217064773539 238312493307 254747837673 255965270589 273618047871 290959164531 293886051417 329098205043 351794632977 377853494679 441131636547 471554508033 506484471591 651194320617 714937479921 764243513019 767895811767 820854143613 881658154251 987294615129 1055383898931 1133560484037 1519453414773 1953582961851 2303687435301 2462562430839 2644974462753 2961883845387 3166151696793 3400681452111 4558360244319 6911062305903 7387687292517 7934923388259 10202044356333 13675080732957 20733186917709 22163061877551 23804770164777 30606133068999 71414310494331 91818399206997 214242931482993 642728794448979
• Sum of all divisors σ(n): 1203530661618688
• Sum of proper divisors (its aliquot sum) s(n): 560801867169709
• 642728794448979 is a deficient number, because the sum of its proper divisors (560801867169709) is less than itself. Its deficiency is 81926927279270

Bases of 642728794448979

• Binary: 10010010001000111011110101011110101110010001010011₂
• Hexadecimal: 0x2488EF57AE453
• Base-36: 6BTTJ5G66R

Squares and roots of 642728794448979

• 642728794448979 squared (642728794448979²) is 413100303213837898604234142441
• 642728794448979 cubed (642728794448979³) is 265511459871137717718039419542158587193017739
• The square root of 642728794448979 is 25352096.4507667295
• The cube root of 642728794448979 is 86299.6933019781

Scales and comparisons

• 642,728,794,448,979 seconds is equal to 20,436,787 years, 29 weeks, 5 days, 11 hours, 49 minutes, 39 seconds.
• To count from 1 to 642,728,794,448,979 would take you about fifty-one million, ninety-one thousand, nine hundred sixty-eight 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 642728794448979 cubic inches would be around 7191.6 feet tall.

Recreational maths with 642728794448979

• 642728794448979 backwards is 979844497827246
• The number of decimal digits it has is: 15
• The sum of 642728794448979's digits is 90
• More coming soon!