668751738720

Names of 668751738720

• Cardinal: 668751738720 can be written as Six hundred sixty-eight billion, seven hundred fifty-one million, seven hundred thirty-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 6.6875173872 × 10¹¹

Factors of 668751738720

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 762

Divisors of 668751738720

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 16 20 24 26 30 32 39 40 48 52 60 65 78 80 89 96 104 120 130 156 160 169 178 195 208 211 240 260 267 312 338 356 390 416 422 439 445 480 507 520 534 624 633 676 712 780 844 845 878 890 1014 1040 1055 1068 1157 1248 1266 1317 1335 1352 1424 1560 1688 1690 1756 1780 2028 2080 2110 2136 2195 2314 2532 2535 2634 2670 2704 2743 2848 3120 3165 3376 3380 3471 3512 3560 4056 4220 4272 4390 4628 5064 5070 5268 5340 5408 5486 5707 5785 6240 6330 6585 6752 6760 6942 7024 7120 8112 8229 8440 8544 8780 9256 10128 10140 10536 10680 10972 11414 11570 12660 13170 13520 13715 13884 14048 14240 15041 16224 16458 16880 17121 17355 17560 18512 18779 20256 20280 21072 21360 21944 22828 23140 25320 26340 27040 27430 27768 28535 30082 32916 33760 34242 34710 35120 35659 37024 37558 39071 40560 41145 42144 42720 43888 45123 45656 46280 50640 52680 54860 55536 56337 57070 60164 65832 68484 69420 70240 71318 74191 75116 75205 78142 81120 82290 85605 87776 90246 91312 92560 92629 93895 101280 105360 106977 109720 111072 112674 114140 117213 120328 131664 136968 138840 142636 148382 150232 150410 156284 164580 171210 178295 180492 182624 185120 185258 187790 195355 210720 213954 219440 222573 225348 225615 228280 234426 240656 244127 263328 273936 277680 277887 281685 285272 296764 300464 300820 312568 329160 342420 356590 360984 370516 370955 375580 390710 427908 438880 445146 450696 451230 456560 463145 468852 481312 488254 507923 534885 547872 555360 555774 563370 570544 586065 593528 600928 601640 625136 658320 684840 713180 721968 732381 741032 741910 751160 781420 855816 890292 901392 902460 913120 926290 937704 976508 1015846 1069770 1111548 1112865 1126740 1141088 1172130 1187056 1203280 1204177 1220635 1250272 1316640 1369680 1389435 1426360 1443936 1464762 1482064 1483820 1502320 1523769 1562840 1711632 1780584 1802784 1804920 1852580 1875408 1953016 2031692 2139540 2223096 2225730 2253480 2344260 2374112 2406560 2408354 2441270 2539615 2739360 2778870 2852720 2929524 2964128 2967640 3004640 3047538 3125680 3173651 3423264 3561168 3609840 3612531 3661905 3705160 3750816 3906032 4063384 4279080 4446192 4451460 4506960 4688520 4816708 4882540 5079230 5557740 5705440 5859048 5935280 6020885 6095076 6251360 6347302 6602999 7122336 7219680 7225062 7323810 7410320 7618845 7812064 8126768 8243981 8558160 8892384 8902920 9013920 9377040 9520953 9633416 9765080 10158460 11115480 11718096 11870560 12041770 12190152 12694604 13205998 14450124 14647620 14820640 15237690 15654301 15868255 16253536 16487962 17116320 17805840 18062655 18754080 19041906 19266832 19530160 19808997 20316920 22230960 23436192 24083540 24380304 24731943 25389208 26411996 28900248 29295240 30475380 31308602 31736510 32975924 33014995 35611680 36125310 38083812 38533664 39060320 39617994 40633840 41219905 44461920 46962903 47604765 48167080 48760608 49463886 50778416 52823992 57800496 58590480 60950760 62617204 63473020 65951848 66029990 72250620 76167624 78271505 79235988 81267680 82439810 93925806 95209530 96334160 98927772 99044985 101556832 105647984 107171753 115600992 117180960 121901520 123659715 125234408 126946040 131903696 132059980 144501240 152335248 156543010 158471976 164879620 187851612 190419060 192668320 197855544 198089970 211295968 214343506 234814515 243803040 247319430 250468816 253892080 263807392 264119960 289002480 304670496 313086020 316943952 321515259 329759240 375703224 380838120 395711088 396179940 428687012 469629030 494638860 500937632 507784160 528239920 535858765 578004960 626172040 633887904 643030518 659518480 751406448 761676240 791422176 792359880 857374024 939258060 989277720 1056479840 1071717530 1252344080 1286061036 1319036960 1393232789 1502812896 1523352480 1584719760 1607576295 1714748048 1878516120 1978555440 2143435060 2504688160 2572122072 2786465578 3169439520 3215152590 3429496096 3757032240 3957110880 4179698367 4286870120 5144244144 5572931156 6430305180 6966163945 7514064480 8359396734 8573740240 10288488288 11145862312 12860610360 13932327890 16718793468 17147480480 20898491835 22291724624 25721220720 27864655780 33437586936 41796983670 44583449248 51442441440 55729311560 66875173872 83593967340 111458623120 133750347744 167187934680 222917246240 334375869360 668751738720
• Sum of all divisors σ(n): 2322918259200
• Sum of proper divisors (its aliquot sum) s(n): 1654166520480
• 668751738720 is an abundant number, because the sum of its proper divisors (1654166520480) is greater than itself. Its abundance is 985414781760

Bases of 668751738720

• Binary: 1001101110110100101101011011011101100000₂
• Hexadecimal: 0x9BB4B5B760
• Base-36: 8J7XIO2O

Squares and roots of 668751738720

• 668751738720 squared (668751738720²) is 447228888041023147238400
• 668751738720 cubed (668751738720³) is 299085096483246444403446566350848000
• The square root of 668751738720 is 817772.4247735429
• The cube root of 668751738720 is 8744.9025601099

Scales and comparisons

• 668,751,738,720 seconds is equal to 21,264 years, 12 weeks, 2 days, 3 hours, 52 minutes.
• To count from 1 to 668,751,738,720 would take you about forty-two thousand, five hundred twenty-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 668751738720 cubic inches would be around 728.7 feet tall.

Recreational maths with 668751738720

• 668751738720 backwards is 027837157866
• 668751738720 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 668751738720's digits is 60
• More coming soon!