640643144960

Names of 640643144960

• Cardinal: 640643144960 can be written as Six hundred forty billion, six hundred forty-three million, one hundred forty-four thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 6.4064314496 × 10¹¹

Factors of 640643144960

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 692

Divisors of 640643144960

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 4 5 7 8 10 13 14 16 17 20 26 28 32 34 35 40 41 52 56 64 65 68 70 80 82 85 91 104 112 119 128 130 136 140 160 164 169 170 182 205 208 221 224 238 256 260 272 280 287 320 328 338 340 364 410 416 442 448 455 476 520 533 544 560 574 595 607 640 656 676 680 697 728 820 832 845 884 896 910 952 1040 1066 1088 1105 1120 1148 1183 1190 1214 1280 1312 1352 1360 1394 1435 1456 1547 1640 1664 1690 1768 1792 1820 1904 2080 2132 2176 2210 2240 2296 2366 2380 2428 2624 2665 2704 2720 2788 2870 2873 2912 3035 3094 3280 3328 3380 3485 3536 3640 3731 3808 4160 4249 4264 4352 4420 4480 4592 4732 4760 4856 4879 5248 5330 5408 5440 5576 5740 5746 5824 5915 6070 6188 6560 6760 6929 6970 7072 7280 7462 7616 7735 7891 8320 8498 8528 8840 8960 9061 9184 9464 9520 9712 9758 10319 10496 10660 10816 10880 11152 11480 11492 11648 11830 12140 12376 13120 13520 13858 13940 14144 14365 14560 14924 15232 15470 15782 16640 16996 17056 17680 18122 18368 18655 18928 19040 19424 19516 20111 20638 21245 21320 21632 21760 22304 22960 22984 23296 23660 24280 24395 24752 24887 26240 27040 27716 27880 28288 28730 29120 29848 30464 30940 31564 33992 34112 34645 35360 36244 36736 37310 37856 38080 38848 39032 39455 40222 41276 42490 42640 43264 44608 45305 45920 45968 47320 48503 48560 48790 49504 49774 51595 52480 54080 55237 55432 55760 56576 57460 58240 59696 61880 63128 63427 67984 68224 69290 70720 72233 72488 73472 74620 75712 76160 77696 78064 78910 80444 82552 84980 85280 89216 90610 91840 91936 94640 97006 97120 97580 99008 99548 100555 102583 103190 108160 110474 110864 111520 114920 116480 117793 119392 123760 124435 126256 126854 134147 135968 136448 138580 141440 144466 144976 149240 151424 152320 155392 156128 157820 160888 165104 169960 170560 174209 178432 181220 183680 183872 189280 194012 194240 195160 198016 199096 201110 205166 206380 216320 220948 221728 223040 229840 235586 238784 242515 247520 248870 252512 253708 268294 271936 276185 277160 282880 288932 289952 298480 302848 312256 315640 317135 321776 323531 330208 339920 341120 348418 361165 362440 367360 367744 378560 388024 388480 390320 396032 398192 402220 410332 412760 423079 441896 443456 446080 459680 471172 477568 485030 495040 497740 505024 507416 512915 536588 543872 552370 554320 577864 579904 588965 596960 624512 631280 634270 643552 647062 660416 670735 679840 682240 696836 718081 722330 724880 735488 757120 776048 776960 780640 796384 804440 820664 824551 825520 846158 871045 883792 886912 892160 919360 939029 942344 955136 970060 990080 995480 1010048 1014832 1025830 1073176 1087744 1104740 1108640 1155728 1159808 1177930 1193920 1249024 1262560 1268540 1287104 1294124 1320832 1341470 1359680 1393672 1436162 1444660 1449760 1514240 1552096 1561280 1592768 1608880 1617655 1641328 1649102 1651040 1692316 1742090 1743911 1767584 1773824 1838720 1878058 1884688 1940120 1980160 1990960 2020096 2029664 2051660 2115395 2146352 2209480 2217280 2264717 2311456 2319616 2355860 2387840 2525120 2537080 2574208 2588248 2641664 2682940 2719360 2787344 2872324 2889320 2899520 2961553 3104192 3122560 3185536 3217760 3235310 3282656 3298204 3302080 3384632 3484180 3487822 3535168 3590405 3677440 3756116 3769376 3880240 3981920 4059328 4103320 4122755 4205903 4230790 4292704 4418960 4434560 4529434 4622912 4695145 4711720 4775680 5050240 5074160 5148416 5176496 5365880 5438720 5500027 5574688 5744648 5778640 5799040 5923106 6208384 6245120 6371072 6435520 6470620 6565312 6596408 6604160 6769264 6968360 6975644 7070336 7180810 7512232 7538752 7760480 7963840 8118656 8206640 8245510 8411806 8461580 8585408 8719555 8837920 8869120 9058868 9245824 9390290 9423440 10100480 10148320 10352992 10731760 11000054 11149376 11323585 11489296 11557280 11598080 11846212 12207377 12416768 12871040 12941240 13130624 13192816 13208320 13538528 13936720 13951288 14140672 14361620 14807765 15024464 15077504 15520960 15927680 16237312 16413280 16491020 16823612 16923160 17170816 17439110 17675840 18117736 18491648 18780580 18846880 20296640 20705984 21029515 21463520 22000108 22298752 22647170 22978592 23114560 23692424 24414754 25742080 25882480 26261248 26385632 27077056 27500135 27873440 27902576 28723240 29441321 29615530 30048928 30155008 31041920 31855360 32826560 32982040 33647224 33846320 34341632 34878220 35351680 36235472 37561160 37693760 38500189 40593280 41411968 42059030 42927040 44000216 44597504 45294340 45957184 46229120 47384848 48829508 51764960 52771264 54154112 55000270 55746880 55805152 57446480 58882642 59231060 60097856 61036885 62083840 65653120 65964080 67294448 67692640 69756440 70703360 71500351 72470944 75122320 75387520 77000378 81186560 82823936 84118060 85854080 88000432 90588680 91914368 92458240 94769696 97659016 103529920 105542528 108308224 110000540 111493760 111610304 114892960 117765284 118462120 120195712 122073770 131306240 131928160 134588896 135385280 139512880 143000702 144941888 147206605 150244640 150775040 154000756 168236120 171708160 176000864 181177360 183828736 189539392 192500945 195318032 207059840 211085056 220001080 222987520 223220608 229785920 235530568 236924240 240391424 244147540 263856320 269177792 270770560 279025760 286001404 289883776 294413210 300489280 308001512 336472240 352001728 357501755 362354720 379078784 385001890 390636064 414119680 440002160 446441216 459571840 471061136 473848480 488295080 500502457 527712640 538355584 541541120 558051520 572002808 579767552 588826420 600978560 616003024 672944480 704003456 715003510 724709440 758157568 770003780 781272128 880004320 919143680 942122272 947696960 976590160 1001004914 1055425280 1076711168 1116103040 1144005616 1177652840 1201957120 1232006048 1345888960 1408006912 1430007020 1449418880 1540007560 1562544256 1760008640 1884244544 1895393920 1953180320 2002009828 2232206080 2288011232 2355305680 2464012096 2502512285 2691777920 2860014040 2898837760 3080015120 3125088512 3520017280 3768489088 3790787840 3906360640 4004019656 4576022464 4710611360 4928024192 5005024570 5383555840 5720028080 6160030240 7040034560 7536978176 7812721280 8008039312 9152044928 9421222720 9856048384 10010049140 11440056160 12320060480 15625442560 16016078624 18304089856 18842445440 20020098280 22880112320 24640120960 32032157248 37684890880 40040196560 45760224640 49280241920 64064314496 80080393120 91520449280 128128628992 160160786240 320321572480 640643144960
• Sum of all divisors σ(n): 2063187044352
• Sum of proper divisors (its aliquot sum) s(n): 1422543899392
• 640643144960 is an abundant number, because the sum of its proper divisors (1422543899392) is greater than itself. Its abundance is 781900754432

Bases of 640643144960

• Binary: 1001010100101001010011101001110100000000₂
• Hexadecimal: 0x95294E9D00
• Base-36: 86B2DYBK

Squares and roots of 640643144960

• 640643144960 squared (640643144960²) is 410423639184239573401600
• 640643144960 cubed (640643144960³) is 262935090972919529170089789095936000
• The square root of 640643144960 is 800401.8646654941
• The cube root of 640643144960 is 8620.6244891495

Scales and comparisons

• 640,643,144,960 seconds is equal to 20,370 years, 24 weeks, 3 days, 5 hours, 9 minutes, 20 seconds.
• To count from 1 to 640,643,144,960 would take you about forty thousand, seven hundred forty 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 640643144960 cubic inches would be around 718.4 feet tall.

Recreational maths with 640643144960

• 640643144960 backwards is 069441346046
• The number of decimal digits it has is: 12
• The sum of 640643144960's digits is 47
• More coming soon!