668935121920

Names of 668935121920

• Cardinal: 668935121920 can be written as Six hundred sixty-eight billion, nine hundred thirty-five million, one hundred twenty-one thousand, nine hundred twenty.

Scientific notation

• Scientific notation: 6.6893512192 × 10¹¹

Factors of 668935121920

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 334

Divisors of 668935121920

• Number of divisors d(n): 704
• Complete list of divisors:
  1 2 4 5 8 10 13 16 19 20 26 31 32 38 40 52 62 64 65 76 80 95 104 113 124 128 130 151 152 155 160 190 208 226 247 248 256 260 302 304 310 320 380 403 416 452 494 496 512 520 565 589 604 608 620 640 755 760 806 832 904 988 992 1024 1040 1130 1178 1208 1216 1235 1240 1280 1469 1510 1520 1612 1664 1808 1963 1976 1984 2015 2080 2147 2260 2356 2416 2432 2470 2480 2560 2869 2938 2945 3020 3040 3224 3328 3503 3616 3926 3952 3968 4030 4160 4294 4520 4681 4712 4832 4864 4940 4960 5120 5738 5876 5890 6040 6080 6448 6656 7006 7232 7345 7657 7852 7904 7936 8060 8320 8588 9040 9362 9424 9664 9728 9815 9880 9920 10735 11476 11752 11780 12080 12160 12896 13312 14012 14345 14464 14690 15314 15704 15808 15872 16120 16640 17063 17176 17515 18080 18724 18848 19328 19456 19630 19760 19840 21470 22952 23405 23504 23560 24160 24320 25792 27911 28024 28690 28928 29380 30628 31408 31616 31744 32240 33280 34126 34352 35030 36160 37297 37448 37696 38285 38656 39260 39520 39680 42940 45539 45904 46810 47008 47120 48320 48640 51584 55822 56048 57380 57856 58760 60853 61256 62816 63232 64480 66557 66560 68252 68704 70060 72320 74594 74896 75392 76570 77312 78520 79040 79360 85315 85880 88939 91078 91808 93620 94016 94240 96640 97280 103168 111644 112096 114760 115712 117520 121706 122512 125632 126464 128960 133114 136504 137408 139555 140120 144640 149188 149792 150784 153140 154624 157040 158080 158720 170630 171760 177878 182156 183616 186485 187240 188032 188480 193280 206336 221819 223288 224192 227695 229520 235040 243412 245024 251264 252928 257920 266228 273008 274816 279110 280240 289280 298376 299584 301568 304265 306280 314080 316160 324197 332785 341260 343520 355756 364312 367232 372970 374480 376064 376960 386560 412672 443638 444695 446576 448384 455390 459040 470080 486824 490048 502528 515840 528953 532456 546016 549632 558220 560480 578560 596752 599168 603136 608530 612560 628160 632320 648394 665570 682520 687040 711512 728624 734464 745940 748960 752128 753920 773120 865241 887276 889390 893152 896768 910780 918080 940160 973648 980096 1005056 1031680 1057906 1064912 1092032 1099264 1109095 1116440 1120960 1156207 1193504 1198336 1217060 1225120 1256320 1264640 1296788 1331140 1365040 1374080 1423024 1457248 1468928 1491880 1497920 1504256 1507840 1620985 1730482 1774552 1778780 1786304 1793536 1821560 1836160 1880320 1947296 1960192 2010112 2063360 2115812 2129824 2184064 2198528 2218190 2232880 2241920 2312414 2387008 2396672 2434120 2450240 2512640 2593576 2644765 2662280 2730080 2748160 2846048 2914496 2937856 2983760 2995840 3015680 3241970 3460964 3549104 3557560 3572608 3587072 3643120 3672320 3760640 3894592 3920384 4214561 4231624 4259648 4326205 4368128 4436380 4465760 4483840 4624828 4774016 4793344 4868240 4900480 5025280 5187152 5289530 5324560 5460160 5496320 5692096 5781035 5828992 5967520 5991680 6483940 6876389 6921928 7098208 7115120 7145216 7286240 7344640 7521280 7789184 7840768 8429122 8463248 8519296 8652410 8736256 8872760 8931520 8967680 9249656 9548032 9736480 9800960 10050107 10050560 10374304 10579060 10649120 10920320 10992640 11384192 11562070 11657984 11935040 11983360 12967880 13752778 13843856 14196416 14230240 14290432 14572480 14689280 15578368 16858244 16926496 17038592 17304820 17472512 17745520 17863040 17935360 18499312 19096064 19472960 19601920 20100214 20748608 21072805 21158120 21298240 21840640 22768384 23124140 23315968 23870080 23966720 25935760 27505556 27687712 28392832 28460480 28580864 29144960 31156736 33716488 33852992 34077184 34381945 34609640 35491040 35726080 36998624 38192128 38945920 39203840 40200428 41497216 42145610 42316240 42596480 43681280 45536768 46248280 46631936 47740160 50250535 51871520 55011112 55375424 56785664 56920960 58289920 62313472 67432976 67705984 68154368 68763890 69219280 70982080 71452160 73997248 77891840 80400856 82994432 84291220 84632480 85192960 87362560 91073536 92496560 95480320 100501070 103743040 110022224 110750848 113571328 113841920 116579840 130651391 134865952 135411968 137527780 138438560 141964160 142904320 147994496 155783680 160801712 165988864 168582440 169264960 170385920 184993120 190960640 201002140 207486080 220044448 221501696 227142656 227683840 233159680 261302782 269731904 270823936 275055560 276877120 283928320 295988992 311567360 321603424 331977728 337164880 338529920 340771840 369986240 402004280 414972160 440088896 443003392 455367680 522605564 539463808 541647872 550111120 553754240 567856640 591977984 643206848 653256955 674329760 677059840 739972480 804008560 829944320 880177792 886006784 1045211128 1078927616 1100222240 1107508480 1135713280 1183955968 1286413696 1306513910 1348659520 1354119680 1479944960 1608017120 1659888640 1760355584 2090422256 2157855232 2200444480 2215016960 2572827392 2613027820 2697319040 2708239360 2959889920 3216034240 3520711168 4180844512 4315710464 4400888960 4430033920 5145654784 5226055640 5394638080 5919779840 6432068480 7041422336 8361689024 8801777920 10291309568 10452111280 10789276160 12864136960 16723378048 17603555840 20904222560 21578552320 25728273920 33446756096 35207111680 41808445120 51456547840 66893512192 83616890240 133787024384 167233780480 334467560960 668935121920
• Sum of all divisors σ(n): 1906889564160
• Sum of proper divisors (its aliquot sum) s(n): 1237954442240
• 668935121920 is an abundant number, because the sum of its proper divisors (1237954442240) is greater than itself. Its abundance is 569019320320

Bases of 668935121920

• Binary: 1001101110111111101000111110110000000000₂
• Hexadecimal: 0x9BBFA3EC00
• Base-36: 8JAYP7GG

Squares and roots of 668935121920

• 668935121920 squared (668935121920²) is 447474197338125264486400
• 668935121920 cubed (668935121920³) is 299331206752432963263442230181888000
• The square root of 668935121920 is 817884.5407024147
• The cube root of 668935121920 is 8745.7018211611

Scales and comparisons

• 668,935,121,920 seconds is equal to 21,270 years, 3 weeks, 3 days, 15 hours, 38 minutes, 40 seconds.
• To count from 1 to 668,935,121,920 would take you about forty-two thousand, five 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 668935121920 cubic inches would be around 728.8 feet tall.

Recreational maths with 668935121920

• 668935121920 backwards is 029121539866
• 668935121920 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 668935121920's digits is 52
• More coming soon!