21389782572648

Names of 21389782572648

• Cardinal: 21389782572648 can be written as Twenty-one trillion, three hundred eighty-nine billion, seven hundred eighty-two million, five hundred seventy-two thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.1389782572648 × 10¹³

Factors of 21389782572648

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 535

Divisors of 21389782572648

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 49 56 59 63 72 84 98 118 126 127 147 168 177 196 236 252 254 294 337 343 354 381 392 413 441 472 504 508 531 588 674 686 708 762 826 882 889 1011 1016 1029 1062 1143 1176 1239 1348 1372 1416 1524 1652 1764 1778 2022 2058 2124 2286 2359 2401 2478 2667 2696 2744 2891 3033 3048 3087 3304 3528 3556 3717 4044 4116 4248 4572 4718 4802 4956 5334 5782 6066 6174 6223 7077 7112 7203 7434 7493 8001 8088 8232 8673 9144 9436 9604 9912 10668 11564 12132 12348 12446 14154 14406 14868 14986 16002 16513 16807 17346 18669 18872 19208 19883 20237 21231 21336 21609 22479 23128 24264 24696 24892 26019 28308 28812 29736 29972 32004 33026 33614 34692 37338 39766 40474 42462 42799 43218 43561 44958 49539 49784 50421 52038 52451 56007 56616 57624 59649 59944 60711 64008 66052 67228 67437 69384 74676 79532 80948 84924 85598 86436 87122 89916 99078 100842 104076 104902 112014 115591 117649 119298 121422 128397 130683 132104 134456 134874 139181 141659 148617 149352 151263 157353 159064 161896 169848 171196 172872 174244 178947 179832 182133 198156 201684 208152 209804 224028 231182 235298 238596 242844 256794 261366 269748 278362 283318 297234 299593 302526 304927 314706 342392 346773 348488 352947 357894 364266 367157 385191 392049 396312 403368 417543 419608 424977 448056 462364 470596 472059 477192 485688 513588 522732 539496 556724 566636 594468 599186 605052 609854 629412 693546 705894 715788 728532 734314 770382 784098 809137 835086 849954 898779 914781 924728 941192 944118 974267 991613 1027176 1040319 1045464 1058841 1101471 1113448 1133272 1188936 1198372 1210104 1219708 1252629 1258824 1274931 1387092 1411788 1431576 1457064 1468628 1540764 1568196 1618274 1670172 1699908 1797558 1829562 1888236 1948534 1983226 2080638 2097151 2117682 2134489 2202942 2396744 2427411 2439416 2505258 2525141 2549862 2570099 2696337 2744343 2774184 2823576 2922801 2937256 2974839 3081528 3136392 3236548 3304413 3340344 3399816 3595116 3659124 3776472 3897068 3966452 4161276 4194302 4235364 4268978 4405884 4854822 5010516 5050282 5099724 5140198 5392674 5488686 5663959 5845602 5949678 6291453 6403467 6473096 6608826 6819869 6941291 7190232 7282233 7318248 7575423 7710297 7794136 7932904 8322552 8388604 8470728 8537956 8768403 8811768 8924517 9709644 10021032 10100564 10199448 10280396 10785348 10977372 11327918 11691204 11899356 12582906 12806934 13217652 13639738 13882582 14564466 14680057 14941423 15150846 15420594 16777208 16991877 17075912 17536806 17675987 17849034 17990693 18874359 19210401 19419288 20201128 20459607 20560792 20823873 21570696 21954744 22655836 22726269 23130891 23382408 23798712 25165812 25613868 26435304 27279476 27765164 29128932 29360114 29882846 30301692 30841188 33983754 35073612 35351974 35698068 35981386 37748718 38420802 39647713 40919214 41647746 44040171 44824269 45311672 45452538 46261782 47739083 50331624 50975631 51227736 53027961 53972079 54558952 55530328 58257864 58720228 59765692 60603384 61378821 61682376 62471619 67967508 70147224 70703948 71396136 71962772 75497436 76841604 79295426 81838428 83295492 88080342 89648538 90905076 92523564 95478166 101951262 102760399 106055922 107944158 117440456 118943139 119531384 122757642 123731909 124943238 125934851 132120513 134472807 135935016 141407896 143217249 143925544 150994872 153683208 158590852 159083883 161916237 163676856 166590984 176160684 179297076 181810152 185047128 190956332 203902524 205520798 212111844 215888316 237886278 245515284 247463818 249886476 251869702 264241026 268945614 286434498 308281197 317181704 318167766 323832474 334173581 352321368 356829417 358594152 371195727 377804553 381912664 407805048 411041596 424223688 429651747 431776632 475772556 491030568 494927636 499772952 503739404 528482052 537891228 572868996 616562394 636335532 647664948 668347162 713658834 719322793 742391454 755609106 822083192 859303494 866123363 881543957 924843591 951545112 989855272 1002520743 1007478808 1056964104 1075782456 1113587181 1133413659 1145737992 1233124788 1272671064 1295329896 1336694324 1427317668 1438645586 1484782908 1511218212 1718606988 1732246726 1763087914 1849687182 2005041486 2157968379 2227174362 2266827318 2339215067 2466249576 2598370089 2644631871 2673388648 2854635336 2877291172 2969565816 3007562229 3022436424 3437213976 3464493452 3526175828 3699374364 4010082972 4315936758 4454348724 4533654636 4678430134 5035259551 5196740178 5289263742 5754582344 6015124458 6062863541 6473905137 6928986904 7017645201 7052351656 7398748728 7795110267 7933895613 8020165944 8631873516 8908697448 9067309272 9356860268 10070519102 10393480356 10578527484 12030248916 12125727082 12947810274 14035290402 15105778653 15590220534 15867791226 17263747032 18188590623 18713720536 20141038204 20786960712 21052935603 21157054968 24060497832 24251454164 25895620548 28070580804 30211557306 31180441068 31735582452 36377181246 40282076408 42105871206 42440044787 45317335959 48502908328 51791241096 54565771869 56141161608 60423114612 62360882136 63471164904 72754362492 84211742412 84880089574 90634671918 109131543738 120846229224 127320134361 145508724984 168423484824 169760179148 181269343836 218263087476 254640268722 297080313509 339520358296 362538687672 381960403083 436526174952 509280537444 594160627018 763920806166 891240940527 1018561074888 1188321254036 1527841612332 1782481881054 2376642508072 2673722821581 3055683224664 3564963762108 5347445643162 7129927524216 10694891286324 21389782572648
• Sum of all divisors σ(n): 69477956121600
• Sum of proper divisors (its aliquot sum) s(n): 48088173548952
• 21389782572648 is an abundant number, because the sum of its proper divisors (48088173548952) is greater than itself. Its abundance is 26698390976304

Bases of 21389782572648

• Binary: 100110111010000110010011001000101111001101000₂
• Hexadecimal: 0x137432645E68
• Base-36: 7KYBW9XM0

Squares and roots of 21389782572648

• 21389782572648 squared (21389782572648²) is 457522798505156093397731904
• 21389782572648 cubed (21389782572648³) is 9786313182054730232129751293029307361792
• The square root of 21389782572648 is 4624908.9258760545
• The cube root of 21389782572648 is 27758.8917522619

Scales and comparisons

• 21,389,782,572,648 seconds is equal to 680,128 years, 47 weeks, 6 days, 22 hours, 10 minutes, 48 seconds.
• To count from 1 to 21,389,782,572,648 would take you about one million, seven hundred thousand, three hundred twenty-two 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 21389782572648 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21389782572648

• 21389782572648 backwards is 84627528798312
• 21389782572648 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21389782572648's digits is 72
• More coming soon!