21309478633856

Names of 21309478633856

• Cardinal: 21309478633856 can be written as Twenty-one trillion, three hundred nine billion, four hundred seventy-eight million, six hundred thirty-three thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 2.1309478633856 × 10¹³

Factors of 21309478633856

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 18918

Divisors of 21309478633856

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 4 7 8 14 16 17 28 29 31 32 34 56 58 62 64 68 83 112 116 119 124 128 136 166 203 217 224 232 238 248 272 332 406 434 448 464 476 493 496 527 544 581 664 812 868 896 899 928 952 986 992 1054 1088 1162 1328 1411 1624 1736 1798 1856 1904 1972 1984 2108 2176 2324 2407 2573 2656 2822 3248 3451 3472 3596 3689 3712 3808 3944 3968 4216 4648 4814 5146 5312 5644 6293 6496 6902 6944 7192 7378 7616 7888 8432 9296 9628 9877 10292 10624 11288 12586 12992 13804 13888 14384 14756 15232 15283 15776 16849 16864 18011 18592 18749 19256 19754 20584 22576 25172 25984 27608 27776 28768 29512 30566 31552 33698 33728 36022 37184 37498 38512 39508 40919 41168 43741 45152 50344 55216 57536 59024 61132 63104 67396 67456 72044 74368 74617 74996 77024 79016 81838 82336 87482 90304 100688 106981 110432 115072 118048 122264 131243 134792 144088 149234 149992 154048 158032 163676 164672 174964 180608 201376 213962 220864 236096 244528 262486 269584 286433 288176 298468 299984 306187 308096 316064 318733 327352 329344 349928 402752 427924 441728 472192 489056 522319 524972 539168 543721 572866 576352 581219 596936 599968 612374 632128 637466 654704 699856 805504 855848 978112 1044638 1049944 1078336 1087442 1145732 1152704 1162438 1193872 1199936 1224748 1264256 1268489 1274932 1309408 1399712 1556167 1711696 1956224 2089276 2099888 2156672 2174884 2231131 2291464 2305408 2324876 2387744 2399872 2449496 2536978 2549864 2618816 2799424 3112334 3423392 3806047 4068533 4178552 4199776 4349768 4462262 4582928 4649752 4775488 4898992 5073956 5099728 5237632 5598848 6224668 6846784 7612094 8137066 8357104 8399552 8699536 8879423 8924524 9165856 9243257 9299504 9550976 9797984 9880723 10147912 10199456 10893169 12449336 13693568 15224188 16274132 16714208 16799104 16855351 17399072 17758846 17849048 18331712 18486514 18599008 19595968 19761446 20295824 20398912 21786338 24898672 26454839 30448376 32548264 33428416 33710702 34798144 35517692 35698096 36663424 36973028 37198016 39191936 39522892 40591648 40797824 43572676 45128843 48241177 49797344 52909678 60896752 64702799 65096528 66856832 67421404 69165061 69596288 71035384 71396192 73946056 74396032 79045784 81183296 87145352 90257686 96482354 99594688 105819356 117987457 121793504 129405598 130193056 134842808 138330122 142070768 142792384 147892112 158091568 162366592 174290704 180515372 185183873 192964708 199189376 211638712 235974914 243587008 258811196 260386112 269685616 276660244 284141536 285584768 286540967 295784224 315901901 316183136 337688239 348581408 361030744 370367746 385929416 423277424 471949828 487174016 517622392 520772224 539371232 553320488 568283072 573081934 591568448 631803802 632366272 675376478 697162816 722061488 740735492 767190331 771858832 820100009 846554848 943899656 1035244784 1078742464 1106640976 1136566144 1146163868 1183136896 1263607604 1264732544 1350752956 1394325632 1398994133 1444122976 1481470984 1534380662 1543717664 1640200018 1693109696 1887799312 2005786769 2070489568 2157484928 2213281952 2292327736 2527215208 2701505912 2797988266 2888245952 2962941968 3068761324 3087435328 3280400036 3386219392 3775598624 4011573538 4140979136 4426563904 4584655472 5054430416 5370332317 5403011824 5595976532 5740700063 5776491904 5925883936 6137522648 6174870656 6560800072 7551197248 8023147076 8281958272 8853127808 9169310944 9792958931 10108860832 10740664634 10806023648 11191953064 11481400126 11851767872 12275045296 13121600144 15102394496 16046294152 18338621888 19585917862 20217721664 21481329268 21612047296 22383906128 22962800252 23703535744 23782900261 24550090592 26243200288 32092588304 36677243776 39171835724 40435443328 42962658536 43224094592 44767812256 45925600504 47565800522 49100181184 52486400576 64185176608 78343671448 85925317072 89535624512 91851201008 95131601044 98200362368 104972801152 128370353216 156687342896 166480301827 171850634144 179071249024 183702402016 190263202088 256740706432 313374685792 332960603654 343701268288 367404804032 380526404176 626749371584 665921207308 687402536576 734809608064 761052808352 1253498743168 1331842414616 1522105616704 2663684829232 3044211233408 5327369658464 10654739316928 21309478633856
• Sum of all divisors σ(n): 55520640000000
• Sum of proper divisors (its aliquot sum) s(n): 34211161366144
• 21309478633856 is an abundant number, because the sum of its proper divisors (34211161366144) is greater than itself. Its abundance is 12901682732288

Bases of 21309478633856

• Binary: 100110110000101111111111001111000000110000000₂
• Hexadecimal: 0x13617FE78180
• Base-36: 7JXFTDTVK

Squares and roots of 21309478633856

• 21309478633856 squared (21309478633856²) is 454093879646765376109428736
• 21309478633856 cubed (21309478633856³) is 9676503826097524730745711481577868886016
• The square root of 21309478633856 is 4616219.0842567253
• The cube root of 21309478633856 is 27724.1096655365

Scales and comparisons

• 21,309,478,633,856 seconds is equal to 677,575 years, 26 weeks, 2 days, 4 hours, 30 minutes, 56 seconds.
• To count from 1 to 21,309,478,633,856 would take you about one million, six hundred ninety-three thousand, nine hundred thirty-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 21309478633856 cubic inches would be around 2310.3 feet tall.

Recreational maths with 21309478633856

• 21309478633856 backwards is 65833687490312
• The number of decimal digits it has is: 14
• The sum of 21309478633856's digits is 65
• More coming soon!