644064626940

Names of 644064626940

• Cardinal: 644064626940 can be written as Six hundred forty-four billion, sixty-four million, six hundred twenty-six thousand, nine hundred forty.

Scientific notation

• Scientific notation: 6.4406462694 × 10¹¹

Factors of 644064626940

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 77

Divisors of 644064626940

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 19 20 21 28 30 35 38 41 42 49 57 60 70 76 82 84 95 98 105 114 123 133 140 147 164 190 196 205 210 228 245 246 266 285 287 294 361 380 399 410 420 490 492 532 570 574 588 615 665 722 735 779 798 820 861 931 980 1083 1140 1148 1230 1330 1435 1444 1470 1558 1596 1681 1722 1805 1862 1995 2009 2166 2337 2460 2527 2660 2793 2870 2940 3116 3362 3444 3610 3724 3895 3990 4018 4305 4332 4655 4674 5043 5054 5415 5453 5586 5740 6027 6724 6859 7220 7581 7790 7980 8036 8405 8610 9310 9348 10045 10086 10108 10830 10906 11172 11685 11767 12054 12635 13718 13965 14801 15162 15580 16359 16810 17220 17689 18620 20090 20172 20577 21660 21812 23370 23534 24108 25215 25270 27265 27436 27930 29602 30135 30324 31939 32718 33620 34295 35301 35378 37905 38171 40180 41154 44403 46740 47068 48013 50430 50540 53067 54530 55860 58835 59204 60270 63878 65436 68590 70602 70756 74005 75810 76342 81795 82308 82369 88445 88806 95817 96026 100860 102885 103607 106134 109060 114513 117670 120540 127756 130321 137180 141204 144039 148010 151620 152684 159695 163590 164738 176505 176890 177612 190855 191634 192052 205770 207214 212268 222015 223573 229026 235340 240065 247107 260642 265335 281219 288078 296020 310821 319390 327180 329476 336091 353010 353780 381710 383268 390963 411540 411845 414428 444030 447146 458052 479085 480130 494214 518035 521284 530670 562438 572565 576156 606841 621642 638780 651605 670719 672182 706020 720195 725249 763420 781926 823690 843657 888060 894292 912247 958170 960260 988428 1008273 1036070 1061340 1117865 1124876 1145130 1213682 1235535 1243284 1303210 1341438 1344364 1406095 1440390 1450498 1554105 1563852 1565011 1647380 1680455 1687314 1820523 1824494 1916340 1954815 1968533 2016546 2072140 2175747 2235730 2290260 2427364 2471070 2606420 2682876 2736741 2812190 2880780 2900996 3034205 3108210 3130022 3353595 3360910 3374628 3626245 3641046 3648988 3909630 3937066 4033092 4218285 4247887 4351494 4471460 4561235 4695033 4942140 5041365 5343161 5473482 5624380 5905599 6068410 6216420 6260044 6385729 6707190 6721820 7252490 7282092 7819260 7825055 7874132 8436570 8495774 8702988 9102615 9122470 9390066 9842665 10082730 10686322 10878735 10946964 11529979 11811198 12136820 12743661 12771458 13414380 13683705 13779731 14504980 15650110 16029483 16873140 16991548 18205230 18244940 18780132 19157187 19685330 20165460 21239435 21372644 21757470 23059958 23475165 23622396 25487322 25542916 26715805 27367410 27559462 29527995 29735209 31300220 31928645 32058966 34589937 36410460 37402127 38314374 39370660 41339193 42478870 43514940 46119916 46950330 50974644 53431610 54734820 55118924 57649895 59055990 59470418 63718305 63857290 64117932 68898655 69179874 74804254 76628748 80147415 80709853 82678386 84957740 89205627 93900660 95785935 106863220 112206381 115299790 118111980 118940836 127436610 127714580 137797310 138359748 148676045 149608508 160294830 161419706 165356772 172949685 178411254 187010635 191571870 206695965 219069601 224412762 230599580 242129559 254873220 261814889 275594620 297352090 320589660 322839412 345899370 356822508 374021270 383143740 403549265 413391930 438139202 446028135 448825524 484259118 523629778 561031905 564968971 594704180 657208803 691798740 748042540 785444667 807098530 826783860 876278404 892056270 968518236 1047259556 1095348005 1122063810 1129937942 1210647795 1309074445 1314417606 1533487207 1570889334 1614197060 1694906913 1784112540 2190696010 2244127620 2259875884 2421295590 2618148890 2628835212 2824844855 3066974414 3141778668 3286044015 3389813826 3927223335 4381392020 4600461621 4842591180 5236297780 5649689710 6133948828 6572088030 6779627652 7667436035 7854446670 8474534565 9200923242 10734410449 11299379420 13144176060 15334872070 15708893340 16949069130 18401846484 21468820898 23002308105 30669744140 32203231347 33898138260 42937641796 46004616210 53672052245 64406462694 92009232420 107344104490 128812925388 161016156735 214688208980 322032313470 644064626940
• Sum of all divisors σ(n): 2269680566328
• Sum of proper divisors (its aliquot sum) s(n): 1625615939388
• 644064626940 is an abundant number, because the sum of its proper divisors (1625615939388) is greater than itself. Its abundance is 981551312448

Bases of 644064626940

• Binary: 1001010111110101001111100100100011111100₂
• Hexadecimal: 0x95F53E48FC
• Base-36: 87VNG6PO

Squares and roots of 644064626940

• 644064626940 squared (644064626940²) is 414819243675361373763600
• 644064626940 cubed (644064626940³) is 267170401425304577662738937751384000
• The square root of 644064626940 is 802536.3711010237
• The cube root of 644064626940 is 8635.9439683833

Scales and comparisons

• 644,064,626,940 seconds is equal to 20,479 years, 13 weeks, 4 days, 16 hours, 49 minutes.
• To count from 1 to 644,064,626,940 would take you about forty thousand, nine hundred fifty-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 644064626940 cubic inches would be around 719.7 feet tall.

Recreational maths with 644064626940

• 644064626940 backwards is 049626460446
• The number of decimal digits it has is: 12
• The sum of 644064626940's digits is 51
• More coming soon!