640684989360

Names of 640684989360

• Cardinal: 640684989360 can be written as Six hundred forty billion, six hundred eighty-four million, nine hundred eighty-nine thousand, three hundred sixty.

Scientific notation

• Scientific notation: 6.4068498936 × 10¹¹

Factors of 640684989360

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 60573

Divisors of 640684989360

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 29 30 36 39 40 45 48 52 54 58 60 65 72 78 80 87 90 104 108 116 117 120 130 135 144 145 156 169 174 180 195 208 216 232 234 240 260 261 270 290 312 338 348 351 360 377 390 432 435 464 468 507 520 522 540 580 585 624 676 696 702 720 754 780 783 845 870 936 1014 1040 1044 1080 1131 1160 1170 1305 1352 1392 1404 1508 1521 1560 1566 1690 1740 1755 1872 1885 2028 2088 2160 2262 2320 2340 2535 2610 2704 2808 3016 3042 3120 3132 3380 3393 3480 3510 3770 3915 4056 4176 4524 4563 4680 4901 5070 5220 5616 5655 6032 6084 6264 6760 6786 6960 7020 7540 7605 7830 8112 9048 9126 9360 9802 10140 10179 10440 11310 12168 12528 13520 13572 14040 14703 15080 15210 15660 16965 18096 18252 19604 20280 20358 20880 22620 22815 24336 24505 27144 28080 29406 30160 30420 31320 33930 36504 39208 40560 40716 44109 45240 45630 49010 50895 54288 58812 60521 60840 62640 67860 73008 73515 78416 81432 88218 90480 91260 98020 101790 117624 121042 121680 132327 135720 147030 162864 176436 181563 182520 196040 203580 220545 235248 242084 264654 271440 294060 302605 352872 363126 365040 392080 407160 441090 484168 529308 544689 588120 605210 661635 705744 726252 786773 814320 882180 907815 968336 1058616 1089378 1176240 1210420 1323270 1452504 1573546 1634067 1755109 1764360 1815630 2117232 2178756 2360319 2420840 2646540 2723445 2905008 3147092 3268134 3510218 3528720 3631260 3933865 4357512 4720638 4841680 5265327 5293080 5446890 6294184 6536268 7020436 7080957 7262520 7867730 8170335 8715024 8775545 9441276 10228049 10530654 10586160 10893780 11801595 12588368 13072536 14040872 14161914 14525040 15735460 15795981 16340670 17551090 18882552 20456098 21061308 21242871 21787560 22816417 23603190 26145072 26326635 28081744 28323828 30684147 31470920 31591962 32681340 35102180 35404785 37765104 40912196 42122616 42485742 43575120 45632834 47206380 47387943 51140245 52653270 56647656 61368294 62941840 63183924 65362680 68449251 70204360 70809570 78979905 81824392 84245232 84971484 91265668 92052441 94412760 94775886 102280490 105306540 106214355 113295312 114082085 122736588 126367848 130725360 136898502 140408720 141619140 153420735 157959810 163648784 169942968 182531336 184104882 188825520 189551772 204560980 205347753 210613080 212428710 228164170 236939715 245473176 252735696 273797004 276157323 283238280 296613421 306841470 315919620 339885936 342246255 365062672 368209764 379103544 409121960 410695506 421226160 424857420 456328340 460262205 473879430 490946352 547594008 552314646 566476560 593226842 613682940 616043259 631839240 684492510 736419528 758207088 818243920 821391012 849714840 889840263 912656680 920524410 947758860 1026738765 1095188016 1104629292 1186453684 1227365880 1232086518 1263678480 1368985020 1380786615 1472839056 1483067105 1642782024 1699429680 1779680526 1825313360 1841048820 1895517720 2053477530 2209258584 2372907368 2454731760 2464173036 2669520789 2737970040 2761573230 2966134210 3080216295 3285564048 3559361052 3682097640 3791035440 4106955060 4418517168 4449201315 4745814736 4928346072 5339041578 5475940080 5523146460 5932268420 6160432590 7118722104 7364195280 8008562367 8213910120 8898402630 9856692144 10678083156 11046292920 11864536840 12320865180 13347603945 14237444208 16017124734 16427820240 17796805260 21356166312 22092585840 23729073680 24641730360 26695207890 32034249468 35593610520 40042811835 42712332624 49283460720 53390415780 64068498936 71187221040 80085623670 106780831560 128136997872 160171247340 213561663120 320342494680 640684989360
• Sum of all divisors σ(n): 2472057403200
• Sum of proper divisors (its aliquot sum) s(n): 1831372413840
• 640684989360 is an abundant number, because the sum of its proper divisors (1831372413840) is greater than itself. Its abundance is 1190687424480

Bases of 640684989360

• Binary: 1001010100101011110011010001101110110000₂
• Hexadecimal: 0x952BCD1BB0
• Base-36: 86BRATO0

Squares and roots of 640684989360

• 640684989360 squared (640684989360²) is 410477255591223313209600
• 640684989360 cubed (640684989360³) is 262986616130984908933076523449856000
• The square root of 640684989360 is 800428.0038579359
• The cube root of 640684989360 is 8620.8121739831

Scales and comparisons

• 640,684,989,360 seconds is equal to 20,371 years, 41 weeks, 4 days, 12 hours, 36 minutes.
• To count from 1 to 640,684,989,360 would take you about forty thousand, seven hundred forty-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 640684989360 cubic inches would be around 718.4 feet tall.

Recreational maths with 640684989360

• 640684989360 backwards is 063989486046
• The number of decimal digits it has is: 12
• The sum of 640684989360's digits is 63
• More coming soon!