20389705745640

Names of 20389705745640

• Cardinal: 20389705745640 can be written as Twenty trillion, three hundred eighty-nine billion, seven hundred five million, seven hundred forty-five thousand, six hundred forty.

Scientific notation

• Scientific notation: 2.038970574564 × 10¹³

Factors of 20389705745640

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 4331

Divisors of 20389705745640

• Number of divisors d(n): 768
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 11 12 14 15 20 21 22 24 28 30 33 35 40 42 44 55 56 60 61 66 70 77 84 88 105 110 120 121 122 132 140 154 165 168 183 210 220 231 242 244 264 280 305 308 330 363 366 385 420 427 440 462 484 488 605 610 616 660 671 726 732 770 840 847 854 915 924 968 1021 1155 1210 1220 1281 1320 1342 1452 1464 1540 1694 1708 1815 1830 1848 2013 2042 2135 2310 2420 2440 2541 2562 2684 2904 3063 3080 3221 3355 3388 3416 3630 3660 4026 4084 4235 4270 4620 4697 4840 5082 5105 5124 5368 6126 6405 6442 6710 6776 7147 7260 7320 7381 8052 8168 8470 8540 9240 9394 9663 10065 10164 10210 10248 11231 12252 12705 12810 12884 13420 14091 14294 14520 14762 15315 16104 16105 16940 17080 18788 19326 20130 20328 20420 21441 22143 22462 22547 23485 24504 25410 25620 25768 26840 28182 28588 29524 30630 32210 33693 33880 35431 35735 36905 37576 38652 40260 40840 42882 44286 44924 45094 46970 48315 50820 51240 51667 56155 56364 57176 59048 61260 62281 64420 67386 67641 70455 70862 71470 73810 77304 78617 80520 85764 88572 89848 90188 93940 96630 101640 103334 106293 107205 110715 112310 112728 112735 122520 123541 124562 128840 134772 135282 140910 141724 142940 147620 155001 157234 168465 171528 177144 177155 180376 186843 187880 193260 196481 206668 212586 214410 221430 224620 225470 235851 247082 248017 249124 258335 269544 270564 281820 283448 285880 295240 310002 311405 314468 336930 338205 354310 370623 373686 386520 389741 392962 393085 413336 425172 428820 435967 442860 449240 450940 471702 494164 496034 498248 516670 531465 541128 563640 589443 617705 620004 622810 628936 673860 676410 685091 708620 741246 744051 747372 775005 779482 785924 786170 850344 857640 864787 871934 885720 901880 934215 943404 982405 988328 992068 1033340 1062930 1169223 1178886 1179255 1235410 1240008 1240085 1245620 1307901 1347720 1352820 1370182 1375367 1417240 1482492 1488102 1494744 1550010 1558964 1571848 1572340 1729574 1743868 1853115 1868430 1886808 1948705 1964810 1984136 2055273 2066680 2125860 2161291 2179835 2338446 2357772 2358510 2470820 2480170 2491240 2594361 2615802 2705640 2728187 2740364 2750734 2947215 2964984 2976204 3100020 3117928 3144680 3288641 3425455 3459148 3487736 3706230 3720255 3736860 3897410 3929620 4110546 4126101 4251720 4322582 4323935 4359670 4676892 4715544 4717020 4795637 4941640 4960340 5188722 5231604 5456374 5480728 5501468 5846115 5894430 5952408 6200040 6483873 6539505 6577282 6850910 6876835 6918296 7412460 7440510 7473720 7536001 7794820 7859240 8184561 8221092 8252202 8645164 8647870 8719340 9353784 9434040 9591274 9865923 9920680 10276365 10377444 10463208 10806455 10912748 11002936 11692230 11788860 12967746 12971805 13079010 13154564 13640935 13701820 13753670 14386911 14824920 14881020 15072002 15129037 15589640 16369122 16442184 16443205 16504404 17290328 17295740 17438680 19182548 19731846 20552730 20630505 20754888 21612910 21825496 22608003 23020487 23384460 23577720 23774201 23978185 25935492 25943610 26158020 26309128 27281870 27403640 27507340 28773822 29762040 30144004 30258074 32419365 32738244 32886410 33008808 34591480 36175051 37680005 38365096 39463692 40922805 41105460 41261010 43225820 45216006 45387111 46040974 46768920 47548402 47956370 49329615 51870984 51887220 52316040 52752007 54563740 55014680 57547644 60288008 60516148 64838730 65476488 65772820 69061461 71322603 71934555 72350102 75360010 75645185 78927384 81845610 82210920 82522020 86451640 90432012 90774222 92081948 95096804 95912740 98659230 103774440 105504014 108525153 109127480 113040015 115095288 115102435 118871005 121032296 129677460 131545640 138122922 142645206 143869110 144700204 150720020 151290370 158256021 163691220 165044040 166419407 180864024 180875255 181548444 184163896 190193608 191825480 197318460 200607101 211008028 217050306 226080030 226935555 230204870 237742010 253225357 259354920 263760035 276245844 285290412 287738220 289400408 301440040 302580740 316512042 327382440 332838814 345307305 356613015 361750510 363096888 394636920 397925561 401214202 422016056 434100612 452160060 453871110 460409740 475484020 499258221 506450714 527520070 542625765 552491688 570580824 575476440 601821303 605161480 633024084 665677628 690614610 713226030 723501020 759676071 791280105 795851122 802428404 832097035 868201224 904320120 907742220 920819480 950968040 998516442 1003035505 1012901428 1055040140 1085251530 1193776683 1203642606 1266048168 1266126785 1331355256 1381229220 1404249707 1426452060 1447002040 1519352142 1582560210 1591702244 1604856808 1664194070 1815484440 1989627805 1997032884 2006071010 2025802856 2110080280 2170503060 2206678111 2387553366 2407285212 2496291105 2532253570 2762458440 2785478927 2808499414 2852904120 3009106515 3038704284 3165120420 3183404488 3328388140 3798380355 3979255610 3994065768 4012142020 4212749121 4341006120 4413356222 4775106732 4814570424 4992582210 5064507140 5570957854 5616998828 5968883415 6018213030 6077408568 6330240840 6620034333 6656776280 7021248535 7596760710 7958511220 8024284040 8356436781 8425498242 8826712444 9550213464 9985164420 10129014280 11033390555 11141915708 11233997656 11937766830 12036426060 13240068666 13927394635 14042497070 15193521420 15446746777 15917022440 16712873562 16850996484 17653424888 19970328840 21063745605 22066781110 22283831416 23875533660 24072852120 24273459221 26480137332 27854789270 28084994140 30387042840 30893493554 33100171665 33425747124 33701992968 41782183905 42127491210 44133562220 46340240331 47751067320 48546918442 52960274664 55709578540 56169988280 61786987108 66200343330 66851494248 72820377663 77233733885 83564367810 84254982420 88267124440 92680480662 97093836884 111419157080 121367296105 123573974216 132400686660 145640755326 154467467770 167128735620 168509964840 169914214547 185360961324 194187673768 231701201655 242734592210 264801373320 291281510652 308934935540 334257471240 339828429094 364101888315 370721922648 463402403310 485469184420 509742643641 582563021304 617869871080 679656858188 728203776630 849571072735 926804806620 970938368840 1019485287282 1359313716376 1456407553260 1699142145470 1853609613240 2038970574564 2548713218205 2912815106520 3398284290940 4077941149128 5097426436410 6796568581880 10194852872820 20389705745640
• Sum of all divisors σ(n): 78200989816320
• Sum of proper divisors (its aliquot sum) s(n): 57811284070680
• 20389705745640 is an abundant number, because the sum of its proper divisors (57811284070680) is greater than itself. Its abundance is 37421578325040

Bases of 20389705745640

• Binary: 100101000101101011001001010110000010011101000₂
• Hexadecimal: 0x128B592B04E8
• Base-36: 786WGCR8O

Squares and roots of 20389705745640

• 20389705745640 squared (20389705745640²) is 415740100393784828379009600
• 20389705745640 cubed (20389705745640³) is 8476818313692104941745353368692718144000
• The square root of 20389705745640 is 4515496.1793406491
• The cube root of 20389705745640 is 27319.3473152303

Scales and comparisons

• 20,389,705,745,640 seconds is equal to 648,329 years, 29 weeks, 5 days, 15 hours, 34 minutes.
• To count from 1 to 20,389,705,745,640 would take you about one million, six hundred twenty thousand, eight hundred twenty-three 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 20389705745640 cubic inches would be around 2276.6 feet tall.

Recreational maths with 20389705745640

• 20389705745640 backwards is 04654750798302
• 20389705745640 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 20389705745640's digits is 60
• More coming soon!