20439397440

Names of 20439397440

• Cardinal: 20439397440 can be written as Twenty billion, four hundred thirty-nine million, three hundred ninety-seven thousand, four hundred forty.

Scientific notation

• Scientific notation: 2.043939744 × 10¹⁰

Factors of 20439397440

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 17
• Sum of prime factors: 47

Divisors of 20439397440

• Number of divisors d(n): 1680
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 18 19 20 21 22 24 27 28 30 32 33 35 36 38 40 42 44 45 48 49 54 55 56 57 60 63 64 66 70 72 76 77 80 81 84 88 90 95 96 98 99 105 108 110 112 114 120 121 126 132 133 135 140 144 147 152 154 160 162 165 168 171 176 180 189 190 192 196 198 209 210 216 220 224 228 231 240 242 245 252 264 266 270 280 285 288 294 297 304 308 315 320 324 330 336 342 343 352 360 363 378 380 385 392 396 399 405 418 420 432 440 441 448 456 462 480 484 490 495 504 513 528 532 539 540 560 567 570 576 588 594 605 608 616 627 630 648 660 665 672 684 686 693 704 720 726 735 756 760 770 784 792 798 810 836 840 847 855 864 880 882 891 912 924 931 945 960 968 980 990 1008 1026 1029 1045 1056 1064 1078 1080 1089 1120 1134 1140 1155 1176 1188 1197 1210 1216 1232 1254 1260 1296 1320 1323 1330 1344 1368 1372 1386 1440 1452 1463 1470 1485 1512 1520 1539 1540 1568 1584 1596 1617 1620 1672 1680 1694 1710 1715 1728 1760 1764 1782 1815 1824 1848 1862 1881 1890 1936 1960 1980 1995 2016 2052 2058 2079 2090 2112 2128 2156 2160 2178 2205 2240 2268 2280 2299 2310 2352 2376 2394 2420 2464 2508 2520 2541 2565 2592 2640 2646 2660 2695 2736 2744 2772 2793 2835 2880 2904 2926 2940 2970 3024 3040 3078 3080 3087 3135 3136 3168 3192 3234 3240 3267 3344 3360 3388 3420 3430 3465 3520 3528 3564 3591 3630 3648 3696 3724 3762 3773 3780 3872 3920 3960 3969 3990 4032 4104 4116 4158 4180 4235 4256 4312 4320 4356 4389 4410 4455 4536 4560 4598 4620 4655 4704 4752 4788 4840 4851 4928 5016 5040 5082 5130 5145 5184 5280 5292 5320 5390 5445 5472 5488 5544 5586 5643 5670 5808 5852 5880 5929 5940 5985 6048 6080 6156 6160 6174 6237 6270 6336 6384 6468 6480 6517 6534 6615 6688 6720 6776 6840 6860 6897 6930 7056 7128 7182 7260 7315 7392 7448 7524 7546 7560 7623 7695 7744 7840 7920 7938 7980 8085 8208 8232 8316 8360 8379 8470 8512 8624 8640 8712 8778 8820 8910 9072 9120 9196 9240 9261 9310 9405 9408 9504 9576 9680 9702 9801 10032 10080 10164 10241 10260 10290 10395 10560 10584 10640 10773 10780 10890 10944 10976 11088 11172 11286 11319 11340 11495 11616 11704 11760 11858 11880 11970 12096 12312 12320 12348 12474 12540 12705 12768 12936 12960 13034 13068 13167 13230 13376 13552 13680 13720 13794 13860 13965 14112 14256 14364 14520 14553 14630 14784 14896 15048 15092 15120 15246 15390 15435 15680 15840 15876 15960 16093 16170 16335 16416 16464 16632 16720 16758 16929 16940 17248 17424 17556 17640 17787 17820 17955 18144 18240 18392 18480 18522 18620 18810 18865 19008 19152 19360 19404 19551 19602 19845 20064 20160 20328 20482 20520 20580 20691 20790 21168 21280 21546 21560 21780 21945 21952 22176 22344 22572 22638 22680 22869 22990 23232 23408 23520 23716 23760 23940 24255 24624 24640 24696 24948 25080 25137 25410 25536 25872 25920 26068 26136 26334 26460 27104 27360 27440 27588 27720 27783 27930 28215 28224 28512 28728 29040 29106 29260 29645 29792 30096 30184 30240 30492 30723 30780 30870 31185 31680 31752 31920 32186 32340 32585 32670 32832 32928 33264 33440 33516 33858 33880 33957 34485 34496 34848 35112 35280 35574 35640 35910 36288 36784 36960 37044 37240 37620 37730 38115 38304 38720 38808 39102 39204 39501 39690 40128 40656 40964 41040 41160 41382 41503 41580 41895 42336 42560 43092 43120 43560 43659 43890 44352 44688 45144 45276 45360 45738 45980 46305 46816 47040 47432 47520 47880 48279 48510 49005 49248 49392 49896 50160 50274 50820 51205 51744 52136 52272 52668 52920 53361 53865 54208 54720 54880 55176 55440 55566 55860 56430 56595 57024 57456 58080 58212 58520 58653 59290 59584 60192 60368 60480 60984 61446 61560 61740 62073 62370 63504 63840 64372 64680 65170 65340 65835 65856 66528 66880 67032 67716 67760 67914 68607 68970 69696 70224 70560 71148 71280 71687 71820 72765 73568 73920 74088 74480 75240 75411 75460 76230 76608 77616 78204 78408 79002 79380 80465 81312 81928 82080 82320 82764 83006 83160 83790 84645 84672 86184 86240 87120 87318 87780 88935 89376 90288 90552 90720 91476 91960 92169 92610 93632 94864 95040 95760 96558 97020 97755 98010 98496 98784 99792 100320 100548 101640 101871 102410 103455 103488 104272 104544 105336 105840 106722 107730 109760 110352 110880 111132 111720 112651 112860 113190 114345 114912 116160 116424 117040 117306 118503 118580 120384 120736 121968 122892 123120 123480 124146 124509 124740 125685 127008 127680 128744 129360 130340 130680 131670 133056 134064 135432 135520 135828 137214 137940 138915 140448 141120 142296 142560 143374 143640 144837 145530 147136 148176 148960 150480 150822 150920 152460 153615 155232 156408 156816 158004 158760 160083 160930 162624 163856 164160 164640 165528 166012 166320 167580 169290 169785 172368 172480 174240 174636 175560 175959 177870 178752 180576 181104 181440 182952 183920 184338 185220 186219 189728 191520 193116 194040 195510 196020 197505 197568 199584 200640 201096 203280 203742 204820 206910 207515 208544 209088 210672 211680 213444 215061 215460 218295 220704 221760 222264 223440 225302 225720 226380 228690 229824 232848 234080 234612 237006 237160 241395 241472 243936 245784 246240 246960 248292 249018 249480 251370 254016 257488 258720 260680 261360 263340 266805 268128 270864 271040 271656 274428 275880 276507 277830 280896 284592 285120 286748 287280 289674 291060 293265 296352 297920 300960 301644 301840 304920 305613 307230 310365 310464 312816 313632 316008 317520 320166 321860 327712 329280 331056 332024 332640 335160 337953 338580 339570 343035 344736 348480 349272 351120 351918 355740 358435 361152 362208 365904 367840 368676 370440 372438 373527 377055 379456 383040 386232 388080 391020 392040 395010 399168 402192 406560 407484 409640 413820 415030 417088 421344 423360 426888 430122 430920 434511 436590 441408 444528 446880 450604 451440 452760 457380 460845 465696 468160 469224 474012 474320 480249 482790 487872 491568 492480 493920 496584 498036 498960 502740 509355 514976 517440 521360 522720 526680 527877 533610 536256 541728 543312 548856 551760 553014 555660 563255 569184 573496 574560 579348 582120 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1463616 1474704 1481760 1489752 1494108 1508220 1528065 1544928 1552320 1564080 1568160 1577114 1580040 1600830 1608768 1629936 1638560 1655280 1659042 1660120 1689765 1707552 1720488 1723680 1738044 1746360 1759590 1778112 1802416 1805760 1811040 1829520 1843380 1862190 1867635 1876896 1896048 1897280 1920996 1931160 1935549 1966272 1986336 1992144 1995840 2010960 2027718 2037420 2085440 2106720 2111508 2134440 2150610 2172555 2173248 2195424 2207040 2212056 2222640 2241162 2253020 2293984 2317392 2328480 2346120 2365671 2370060 2401245 2413152 2439360 2444904 2457840 2482920 2490180 2528064 2561328 2574880 2580732 2607066 2639385 2656192 2681280 2703624 2708640 2716560 2744280 2765070 2794176 2815344 2845920 2867480 2896740 2949408 2963520 2979504 2988216 3016440 3041577 3056130 3089856 3128160 3136320 3154228 3160080 3201660 3225915 3259872 3277120 3310560 3318084 3320240 3361743 3379530 3415104 3440976 3447360 3476088 3492720 3519180 3604832 3622080 3659040 3686760 3724380 3735270 3753792 3792096 3841992 3862320 3871098 3942785 3972672 3984288 4021920 4055436 4074840 4147605 4213440 4223016 4268880 4301220 4345110 4390848 4424112 4445280 4482324 4506040 4587968 4634784 4656960 4692240 4731342 4740120 4802490 4826304 4889808 4915680 4965840 4980360 5069295 5122656 5149760 5161464 5214132 5278770 5407248 5417280 5433120 5488560 5530140 5602905 5630688 5691840 5734960 5793480 5806647 5898816 5959008 5976432 6032880 6083154 6112260 6256320 6308456 6320160 6403320 6451830 6517665 6519744 6621120 6636168 6640480 6723486 6759060 6881952 6952176 6985440 7038360 7097013 7209664 7318080 7373520 7448760 7470540 7584192 7683984 7724640 7742196 7885570 7968576 8043840 8110872 8149680 8295210 8446032 8537760 8602440 8690220 8848224 8890560 8964648 9012080 9124731 9269568 9384480 9462684 9480240 9604980 9677745 9779616 9831360 9931680 9960720 10138590 10245312 10322928 10428264 10557540 10814496 10866240 10977120 11060280 11205810 11261376 11469920 11586960 11613294 11828355 11918016 11952864 12065760 12166308 12224520 12616912 12640320 12806640 12903660 13035330 13272336 13280960 13446972 13518120 13763904 13904352 13970880 14076720 14194026 14747040 14897520 14941080 15207885 15367968 15449280 15484392 15771140 16221744 16299360 16590420 16808715 16892064 17075520 17204880 17380440 17696448 17929296 18024160 18249462 18768960 18925368 18960480 19209960 19355490 19559232 19863360 19921440 20277180 20645856 20856528 21115080 21291039 21628992 21954240 22120560 22411620 22939840 23173920 23226588 23656710 23905728 24131520 24332616 24449040 25233824 25613280 25807320 26070660 26544672 26893944 27036240 27808704 28153440 28388052 29033235 29494080 29795040 29882160 30415770 30735936 30968784 31542280 32443488 32598720 33180840 33617430 33784128 34409760 34760880 35485065 35858592 36048320 36498924 37850736 37920960 38419920 38710980 39842880 40554360 41291712 41713056 42230160 42582078 44241120 44823240 45623655 46347840 46453176 47313420 48665232 48898080 50467648 51226560 51614640 52141320 53089344 53787888 54072480 56306880 56776104 58066470 59590080 59764320 60831540 61937568 63084560 63873117 64886976 66361680 67234860 68819520 69521760 70970130 71717184 72997848 75701472 76839840 77421960 81108720 83426112 84460320 85164156 88482240 89646480 91247310 92906352 94626840 97330464 97796160 103229280 104282640 106455195 107575776 108144960 113552208 116132940 119528640 121663080 123875136 126169120 127746234 132723360 134469720 139043520 141940260 145995696 151402944 153679680 154843920 162217440 168920640 170328312 179292960 182494620 185812704 189253680 194660928 206458560 208565280 212910390 215151552 227104416 232265880 243326160 252338240 255492468 265446720 268939440 283880520 291991392 309687840 319365585 324434880 340656624 358585920 364989240 371625408 378507360 417130560 425820780 454208832 464531760 486652320 510984936 537878880 567761040 583982784 619375680 638731170 681313248 729978480 757014720 851641560 929063520 973304640 1021969872 1075757760 1135522080 1277462340 1362626496 1459956960 1703283120 1858127040 2043939744 2271044160 2554924680 2919913920 3406566240 4087879488 5109849360 6813132480 10219698720 20439397440
• Sum of all divisors σ(n): 98102928000
• Sum of proper divisors (its aliquot sum) s(n): 77663530560
• 20439397440 is an abundant number, because the sum of its proper divisors (77663530560) is greater than itself. Its abundance is 57224133120

Bases of 20439397440

• Binary: 10011000010010010000111010001000000₂
• Hexadecimal: 0x4C2487440
• Base-36: 9E13800

Squares and roots of 20439397440

• 20439397440 squared (20439397440²) is 417768967710278553600
• 20439397440 cubed (20439397440³) is 8538945969128910130138742784000
• The square root of 20439397440 is 142966.4206728279
• The cube root of 20439397440 is 2734.1522611951

Scales and comparisons

• 20,439,397,440 seconds is equal to 649 years, 47 weeks, 2 days, 2 hours, 24 minutes.
• To count from 1 to 20,439,397,440 would take you about one thousand, two hundred ninety-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 20439397440 cubic inches would be around 227.8 feet tall.

Recreational maths with 20439397440

• 20439397440 backwards is 04479393402
• 20439397440 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20439397440's digits is 45
• More coming soon!