640958380020

Names of 640958380020

• Cardinal: 640958380020 can be written as Six hundred forty billion, nine hundred fifty-eight million, three hundred eighty thousand and twenty.

Scientific notation

• Scientific notation: 6.4095838002 × 10¹¹

Factors of 640958380020

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 167

Divisors of 640958380020

• Number of divisors d(n): 1440
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 19 20 21 27 28 30 35 36 37 38 41 42 45 53 54 57 60 63 70 74 76 81 82 84 90 95 105 106 108 111 114 123 126 133 135 140 148 159 162 164 171 180 185 189 190 205 210 212 222 228 246 252 259 265 266 270 285 287 315 318 324 333 342 369 370 371 378 380 399 405 410 420 444 477 492 513 518 530 532 540 555 567 570 574 615 630 636 665 666 684 703 738 740 742 756 777 779 795 798 810 820 855 861 945 954 999 1007 1026 1036 1060 1107 1110 1113 1134 1140 1148 1197 1230 1260 1295 1330 1332 1369 1406 1431 1435 1476 1484 1517 1539 1554 1558 1590 1596 1620 1665 1710 1722 1845 1855 1890 1908 1961 1995 1998 2014 2052 2109 2173 2214 2220 2226 2268 2331 2337 2385 2394 2460 2565 2583 2590 2660 2738 2812 2835 2862 2870 2997 3021 3034 3078 3108 3116 3180 3321 3330 3339 3420 3444 3515 3591 3690 3710 3780 3885 3895 3922 3990 3996 4028 4107 4218 4293 4305 4346 4428 4452 4551 4662 4674 4770 4788 4921 4995 5035 5130 5166 5180 5453 5476 5535 5565 5670 5724 5740 5883 5985 5994 6042 6068 6156 6327 6519 6642 6660 6678 6845 6993 7011 7030 7049 7155 7182 7380 7420 7585 7695 7749 7770 7790 7844 7980 8214 8436 8586 8610 8692 9063 9102 9324 9348 9540 9583 9805 9842 9990 10017 10070 10260 10332 10545 10619 10773 10865 10906 11070 11130 11340 11655 11685 11766 11970 11988 12084 12321 12654 12915 13038 13284 13356 13653 13690 13727 13986 14022 14060 14098 14310 14364 14763 14985 15105 15170 15211 15390 15498 15540 15580 16359 16428 16605 16695 17172 17220 17649 17955 18126 18204 18981 19166 19557 19610 19684 19980 20034 20140 20535 20979 21033 21090 21147 21238 21465 21546 21730 21812 22140 22260 22755 23247 23310 23370 23532 23940 24605 24642 25308 25830 26011 26076 27189 27265 27306 27380 27454 27972 28044 28196 28620 28749 28823 29415 29526 29970 30051 30210 30340 30422 30780 30996 31635 31857 32595 32718 33210 33390 34965 35055 35245 35298 35910 36252 36963 37259 37962 38332 38745 39114 39220 40068 40959 41070 41181 41287 41958 42066 42180 42294 42476 42930 43092 43460 44289 45315 45510 45633 46494 46620 46740 47915 49077 49210 49284 50085 51660 52022 52947 53095 53865 54378 54530 54612 54908 56129 56943 57498 57646 58671 58830 59052 59940 60102 60420 60844 61605 63099 63270 63441 63714 65190 65436 66420 66780 68265 68635 69930 70110 70490 70596 71820 72557 73815 73926 74518 75924 76055 77490 78033 78228 80401 81567 81795 81918 82140 82362 82574 83916 84132 84588 85860 86247 86469 88245 88578 90630 91020 91266 92988 94905 95571 95830 97785 98154 98420 100170 104044 104895 105165 105735 105894 106190 107730 108756 109060 110889 111777 112258 113886 114996 115292 116235 117342 117660 120204 122877 123210 123543 123861 126198 126540 126882 127428 130055 130380 132867 135945 136530 136899 137270 139860 140220 140980 143745 144115 145114 147231 147630 147852 149036 150255 152110 154980 156066 158841 159285 160802 163134 163590 163836 164724 165148 168387 172494 172938 176013 176490 177156 181260 182077 182532 184815 186295 189810 190323 191142 191660 195570 196308 200340 201761 204795 205905 206435 209790 210330 211470 211788 212380 215460 217671 221445 221778 223554 224516 227772 228165 232470 234099 234684 241203 245385 245754 246420 247086 247722 252396 253764 258741 259407 260110 260813 264735 265734 271890 273060 273798 274540 280645 284715 286713 287490 288230 289009 290228 293355 294462 295260 300510 304220 312132 315495 317205 317682 318570 321604 326268 327180 335331 336774 344988 345876 352026 352980 362785 364154 369630 370629 371583 372590 379620 380646 382284 390165 391140 392903 398601 402005 403522 407835 409590 410697 411810 412870 419580 420660 422940 431235 432345 435342 441693 442890 443556 447108 456330 464940 468198 477855 482406 490770 491508 494172 495444 505161 507899 517482 518814 520220 521626 529470 531468 543780 546231 547596 554445 558885 561290 562807 569430 570969 573426 574980 576460 578018 586710 588924 601020 605283 614385 617715 619305 630990 634410 635364 637140 653013 664335 670662 673548 684495 702297 704052 723609 725570 728308 736155 739260 741258 743166 745180 761292 776223 778221 780330 782439 785806 794205 797202 804010 807044 815670 819180 821394 823620 825740 841935 860139 862470 864690 867027 870684 880065 883386 885780 910385 912660 936396 951615 955710 964812 981540 1005993 1008805 1010322 1015798 1034964 1037628 1043252 1058940 1066451 1088355 1092462 1108890 1111887 1114749 1117770 1122580 1125614 1138860 1141938 1146852 1156036 1170495 1173420 1178709 1206015 1210566 1228770 1232091 1235430 1238610 1261980 1268820 1293705 1297035 1304065 1306026 1328670 1341324 1368990 1378583 1404594 1433565 1445045 1447218 1451140 1472310 1482516 1486332 1515483 1523697 1527619 1552446 1556442 1560660 1564878 1571612 1588410 1594404 1608020 1631340 1638693 1642788 1676655 1683870 1688421 1720278 1724940 1729380 1734054 1760130 1766772 1815849 1820770 1853145 1857915 1903230 1911420 1959039 1964515 1993005 2011986 2017610 2020644 2031596 2053485 2106891 2132902 2170827 2176710 2184924 2208465 2217780 2223774 2229498 2235540 2251228 2283876 2334663 2340990 2347317 2357418 2412030 2421132 2457540 2464182 2470860 2477220 2525805 2539495 2587410 2594070 2601081 2608130 2612052 2657340 2731155 2737980 2757166 2809188 2814035 2854845 2867130 2890090 2894436 2944620 2974837 3017979 3026415 3030966 3047394 3055238 3104892 3112884 3129756 3176820 3199353 3265065 3277386 3344247 3353310 3367740 3376842 3440556 3468108 3511485 3520260 3536127 3618045 3631698 3641540 3706290 3715830 3806460 3881115 3891105 3912195 3918078 3929030 3986010 4023972 4035220 4106970 4135749 4213782 4265804 4300695 4335135 4341654 4353420 4416930 4447548 4458996 4546449 4571091 4582857 4669326 4681980 4694634 4714836 4824060 4916079 4928364 5029965 5051610 5065263 5078990 5174820 5188140 5202162 5216260 5332255 5447547 5462310 5514332 5559435 5573745 5628070 5709690 5734260 5780180 5877117 5893545 5949674 6035958 6052830 6061932 6094788 6110476 6160455 6398706 6512481 6530130 6554772 6688494 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21329020 21386666 21708270 21790188 22237740 22294980 22395471 22732245 22855455 22914285 23346630 23409729 23473170 23508468 23574180 24580395 24641820 24814494 25326315 26010810 26049924 26773533 27237735 27426546 27497142 27571660 28167804 28794177 28950243 29385585 29496474 29748370 29860628 30179790 30309660 30391578 30473940 30552380 31212972 31825143 31993530 32079999 32562405 32685282 32773860 33442470 33768420 35209755 35361270 35698044 36316980 37221741 37325785 38392236 38600324 39016215 39180780 41139819 41245713 41357490 41647718 42137820 42251706 42433524 42773332 43416540 44622555 44790942 45464490 45587367 45710910 45828570 46693260 46819458 46946340 47990295 48250405 49160790 49628988 50652630 52021620 53041905 53466665 53547066 54475470 54853092 54994284 56521903 57588354 57900486 58771170 58992948 59496740 60359580 60783156 62036235 62471577 63650286 63987060 64159998 65124810 65370564 66884940 67186413 68566365 68742855 70419510 70722540 73741185 74443482 74651570 75978945 78032430 80320599 81713205 82279638 82491426 82714980 83295436 84503412 86382531 86850729 89245110 89581884 90928980 91174734 91421820 91657140 93638916 95980590 96239997 96500810 98321580 101305260 104119295 105629265 106083810 106933330 107094132 108950940 111665223 111977355 113043806 115176708 115800972 117048645 117542340 123737139 124072470 124943154 127300572 128319996 130249620 133867665 134372826 137132730 137485710 140839020 143970885 144751215 147482370 148886964 149303140 151957890 156064860 159125715 160399995 160641198 163426410 164559276 164982852 169565709 172765062 173701458 178490220 182349468 186108705 187414731 191961180 192479994 193001620 201559239 205699095 206228565 208238590 211258530 212167620 213866660 223330446 223954710 226087612 227936835 234097290 240961797 247474278 248144940 249886308 260552187 267735330 268745652 274265460 274971420 282609515 287941770 288719991 289502430 294964740 303915780 312357885 318251430 320799990 321282396 326852820 335932065 339131418 345530124 347402916 372217410 374829462 384959988 395653321 401602995 403118478 411398190 412457130 416477180 422517060 431912655 434253645 446660892 447909420 455873670 468194580 481199985 481923594 494948556 508697127 521104374 535470660 558326115 562244193 565219030 575883540 577439982 579004860 604677717 618685695 624715770 636502860 641599980 671864130 678262836 744434820 749658924 781656561 791306642 803205990 806236956 822796380 824914260 847828545 863825310 866159973 868507290 911747340 937073655 962399970 963847188 1007796195 1017394254 1042208748 1116652230 1124488386 1130438060 1154879964 1186959963 1204808985 1209355434 1237371390 1249431540 1302760935 1343728260 1443599955 1526091381 1563313122 1582613284 1606411980 1686732579 1695657090 1727650620 1732319946 1737014580 1874147310 1924799940 1978266605 2015592390 2034788508 2233304460 2248976772 2373919926 2409617970 2418710868 2474742780 2543485635 2605521870 2811220965 2887199910 3023388585 3052182762 3126626244 3373465158 3391314180 3464639892 3560879889 3748294620 3908282805 3956533210 4031184780 4330799865 4578274143 4747839852 4819235940 5086971270 5211043740 5622441930 5774399820 5934799815 6046777170 6104365524 6746930316 7121759778 7630456905 7816565610 7913066420 8433662895 8661599730 9156548286 10173942540 10682639667 11244883860 11869599630 12093554340 14243519556 15260913810 15633131220 16867325790 17323199460 17804399445 18313096572 21365279334 22891370715 23739199260 30521827620 32047919001 33734651580 35608798890 42730558668 45782741430 53413198335 64095838002 71217597780 91565482860 106826396670 128191676004 160239595005 213652793340 320479190010 640958380020
• Sum of all divisors σ(n): 2594727717120
• Sum of proper divisors (its aliquot sum) s(n): 1953769337100
• 640958380020 is an abundant number, because the sum of its proper divisors (1953769337100) is greater than itself. Its abundance is 1312810957080

Bases of 640958380020

• Binary: 1001010100111100000110001011011111110100₂
• Hexadecimal: 0x953C18B7F4
• Base-36: 86GA2J90

Squares and roots of 640958380020

• 640958380020 squared (640958380020²) is 410827644917862735200400
• 640958380020 cubed (640958380020³) is 263323421753985084714774614056008000
• The square root of 640958380020 is 800598.7634389651
• The cube root of 640958380020 is 8622.0382129951

Scales and comparisons

• 640,958,380,020 seconds is equal to 20,380 years, 25 weeks, 4 days, 18 hours, 27 minutes.
• To count from 1 to 640,958,380,020 would take you about forty thousand, seven hundred sixty 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 640958380020 cubic inches would be around 718.5 feet tall.

Recreational maths with 640958380020

• 640958380020 backwards is 020083859046
• 640958380020 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640958380020's digits is 45
• More coming soon!