21389368458920

Names of 21389368458920

• Cardinal: 21389368458920 can be written as Twenty-one trillion, three hundred eighty-nine billion, three hundred sixty-eight million, four hundred fifty-eight thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 2.138936845892 × 10¹³

Factors of 21389368458920

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6533

Divisors of 21389368458920

• Number of divisors d(n): 512
• Complete list of divisors:
  1 2 4 5 7 8 10 11 14 19 20 22 28 35 38 40 44 55 56 70 76 77 79 88 95 110 133 140 152 154 158 190 209 220 266 280 308 316 380 385 395 418 440 532 553 616 632 665 760 770 790 829 836 869 1045 1064 1106 1330 1463 1501 1540 1580 1658 1672 1738 2090 2212 2660 2765 2926 3002 3080 3160 3316 3476 4145 4180 4345 4424 5320 5530 5581 5803 5852 6004 6083 6632 6952 7315 7505 8290 8360 8690 9119 10507 11060 11162 11606 11704 12008 12166 14630 15010 15751 16511 16580 17380 18238 21014 22120 22324 23212 24332 27905 29015 29260 30020 30415 31502 33022 33160 34760 36476 39067 42028 44648 45595 46424 48664 52535 55810 58030 58520 60040 60830 61391 63004 63833 65491 66044 72952 78134 78755 82555 84056 91190 105070 106039 110257 111620 115577 116060 121660 122782 126008 127666 130982 132088 156268 157510 165110 173261 182380 195335 210140 212078 220514 223240 231154 232120 243320 245564 255332 261964 306955 312536 315020 319165 327455 330220 346522 364760 390670 420280 424156 429737 440899 441028 458437 462308 491128 510664 523928 530195 551285 577885 613910 630040 638330 654910 660440 693044 720401 742273 781340 848312 859474 866305 881798 882056 916874 924616 1060390 1102570 1155770 1166429 1212827 1227820 1244329 1276660 1309820 1386088 1440802 1484546 1562680 1718948 1732610 1763596 1833748 2120780 2148685 2204495 2205140 2292185 2311540 2332858 2425654 2455640 2488658 2553320 2619640 2881604 2969092 3086293 3437896 3465220 3527192 3602005 3667496 3711365 4241560 4297370 4408990 4410280 4584370 4623080 4626649 4665716 4849889 4851308 4977316 5042807 5763208 5832145 5938184 6064135 6172586 6221645 6930440 7204010 7422730 8165003 8377081 8594740 8710303 8817980 9168740 9253298 9331432 9699778 9702616 9954632 10085614 11664290 12128270 12345172 12443290 13687619 14408020 14845460 15431465 16330006 16754162 17189480 17420606 17635960 18337480 18506596 19399556 20171228 23133245 23328580 24249445 24256540 24690344 24886580 25214035 27375238 28816040 29690920 30862930 32386543 32660012 33508324 33949223 34841212 37013192 38799112 40342456 40825015 41885405 43551515 46266490 46657160 48498890 48513080 49773160 50428070 50893139 54750476 58639567 61725860 64773086 65320024 67016648 67898446 68438095 69682424 81650030 83770810 87103030 87906331 92147891 92532980 95813333 96997780 100856140 101786278 109500952 117279134 123451720 129546172 135796892 136876190 161932715 163300060 167541620 169746115 174206060 175812662 184295782 185065960 191626666 193995560 201712280 203572556 234558268 254465695 259092344 271593784 273752380 293197835 323865430 326600120 335083240 339492230 348412120 351625324 356251973 365505271 368591564 383253332 407145112 439531655 460739455 469116536 479066665 508931390 547504760 586395670 615344317 645035237 647730860 678984460 703250648 712503946 731010542 737183128 766506664 879063310 921478910 958133330 966969641 1017862780 1172791340 1230688634 1290070474 1295461720 1357968920 1425007892 1462021084 1758126620 1781259865 1827526355 1842957820 1916266660 1933939282 2035725560 2345582680 2461377268 2558536897 2580140948 2850015784 2924042168 3076721585 3225176185 3516253240 3562519730 3655052710 3685915640 3832533320 3867878564 4020557981 4834848205 4922754536 5117073794 5160281896 6153443170 6450352370 6768787487 6944600149 7125039460 7310105420 7735757128 8041115962 9669696410 10234147588 12306886340 12792684485 12900704740 13537574974 13889200298 14250078920 14620210840 16082231924 19339392820 20102789905 20468295176 24613772680 25585368970 25801409480 27075149948 27778400596 28143905867 32164463848 33843937435 34723000745 38678785640 40205579810 48612201043 51170737940 54150299896 55556801192 56287811734 67687874870 69446001490 76390601639 80411159620 97224402086 102341475880 112575623468 135375749740 138892002980 140719529335 152781203278 160822319240 194448804172 225151246936 243061005215 270751499480 277784005960 281439058670 305562406556 381953008195 388897608344 486122010430 534734211473 562878117340 611124813112 763906016390 972244020860 1069468422946 1125756234680 1527812032780 1944488041720 2138936845892 2673671057365 3055624065560 4277873691784 5347342114730 10694684229460 21389368458920
• Sum of all divisors σ(n): 64047421440000
• Sum of proper divisors (its aliquot sum) s(n): 42658052981080
• 21389368458920 is an abundant number, because the sum of its proper divisors (42658052981080) is greater than itself. Its abundance is 21268684522160

Bases of 21389368458920

• Binary: 100110111010000011001101101010111111010101000₂
• Hexadecimal: 0x137419B57EA8
• Base-36: 7KY51Q1EW

Squares and roots of 21389368458920

• 21389368458920 squared (21389368458920²) is 457505083071441735727566400
• 21389368458920 cubed (21389368458920³) is 9785744793643870299181706834129972288000
• The square root of 21389368458920 is 4624864.1557260901
• The cube root of 21389368458920 is 27758.7126104639

Scales and comparisons

• 21,389,368,458,920 seconds is equal to 680,115 years, 39 weeks, 1 day, 22 hours, 35 minutes, 20 seconds.
• To count from 1 to 21,389,368,458,920 would take you about one million, seven hundred thousand, two hundred eighty-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 21389368458920 cubic inches would be around 2313.2 feet tall.

Recreational maths with 21389368458920

• 21389368458920 backwards is 02985486398312
• The number of decimal digits it has is: 14
• The sum of 21389368458920's digits is 68
• More coming soon!