642947994000

Names of 642947994000

• Cardinal: 642947994000 can be written as Six hundred forty-two billion, nine hundred forty-seven million, nine hundred ninety-four thousand.

Scientific notation

• Scientific notation: 6.42947994 × 10¹¹

Factors of 642947994000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1141

Divisors of 642947994000

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 25 26 30 36 39 40 45 48 50 52 60 65 72 75 78 80 90 100 104 117 120 125 130 144 150 156 169 180 195 200 208 225 234 240 241 250 260 300 312 325 338 360 375 390 400 450 468 482 500 507 520 585 600 624 650 676 720 723 750 780 845 877 900 936 964 975 1000 1014 1040 1125 1170 1200 1205 1300 1352 1446 1500 1521 1560 1625 1690 1754 1800 1872 1928 1950 2000 2028 2169 2250 2340 2410 2535 2600 2631 2704 2892 2925 3000 3042 3120 3133 3250 3380 3508 3600 3615 3856 3900 4056 4225 4338 4385 4500 4680 4820 4875 5070 5200 5262 5784 5850 6000 6025 6084 6266 6500 6760 7016 7230 7605 7800 7893 8112 8450 8676 8770 9000 9360 9399 9640 9750 10140 10524 10845 11401 11568 11700 12050 12168 12532 12675 13000 13155 13520 14032 14460 14625 15210 15600 15665 15786 16900 17352 17540 18000 18075 18798 19280 19500 20280 21048 21125 21690 21925 22802 23400 24100 24336 25064 25350 26000 26310 28197 28920 29250 30125 30420 31330 31572 33800 34203 34704 35080 36150 37596 38025 39000 39465 40560 40729 42096 42250 43380 43850 45604 46800 46995 48200 50128 50700 52620 54225 56394 57005 57840 58500 60250 60840 62660 63144 63375 65775 67600 68406 70160 72300 75192 76050 78000 78325 78930 81458 84500 86760 87700 90375 91208 93990 96400 101400 102609 105240 108450 109625 112788 114010 117000 120500 121680 122187 125320 126288 126750 131550 136812 140985 144600 148213 150384 152100 156650 157860 162916 169000 171015 173520 175400 180750 182416 187980 190125 197325 202800 203645 205218 210480 211357 216900 219250 225576 228020 234000 234975 241000 244374 250640 253500 263100 271125 273624 281970 285025 289200 296426 304200 313300 315720 325832 328875 338000 342030 350800 361500 366561 375960 380250 391625 394650 407290 410436 422714 433800 438500 444639 451152 456040 469950 482000 488748 507000 513045 526200 542250 547248 563940 570050 592852 608400 610935 626600 631440 634071 651664 657750 684060 704925 723000 733122 741065 751920 760500 783250 789300 814580 820872 845428 855075 867600 877000 889278 912080 939900 977496 986625 1014000 1018225 1026090 1052400 1056785 1084500 1127880 1140100 1174875 1185704 1221870 1253200 1268142 1315500 1333917 1368120 1409850 1425125 1446000 1466244 1482130 1521000 1566500 1578600 1629160 1641744 1690856 1710150 1754000 1778556 1832805 1879800 1902213 1954992 1973250 2036450 2052180 2113570 2169000 2223195 2255760 2280200 2349750 2371408 2443740 2536284 2565225 2631000 2667834 2736240 2747641 2819700 2850250 2932488 2964260 3042000 3054675 3133000 3157200 3170355 3258320 3381712 3420300 3524625 3557112 3665610 3705325 3759600 3804426 3946500 4072900 4104360 4227140 4275375 4338000 4446390 4560400 4699500 4887480 5072568 5091125 5130450 5262000 5283925 5335668 5495282 5639400 5700500 5864976 5928520 6109350 6266000 6340710 6669585 6840600 7049250 7114224 7331220 7410650 7608852 7893000 8145800 8208720 8242923 8454280 8550750 8892780 9164025 9399000 9511065 9774960 10145136 10182250 10260900 10567850 10671336 10990564 11115975 11278800 11401000 11857040 12218700 12681420 12826125 13339170 13681200 13738205 14098500 14662440 14821300 15217704 15273375 15786000 15851775 16291600 16485846 16908560 17101500 17785560 18328050 18526625 18798000 19022130 20364500 20521800 21135700 21342672 21981128 22231950 22802000 24437400 24728769 25362840 25652250 26419625 26678340 27476410 28197000 29324880 29642600 30435408 30546750 31703550 32971692 33347925 34203000 35571120 35719333 36656100 37053250 38044260 40729000 41043600 41214615 42271400 43962256 44463900 45820125 47555325 48874800 49457538 50725680 51304500 52839250 53356680 54952820 55579875 56394000 59285200 61093500 63407100 65943384 66695850 68406000 68691025 71438666 73312200 74106500 76088520 79258875 81458000 82429230 84542800 88927800 91640250 95110650 98915076 102609000 105678500 106713360 107157999 109905640 111159750 122187000 123643845 126814200 131886768 133391700 137382050 142877332 146624400 148213000 152177040 158517750 164858460 166739625 177855600 178596665 183280500 190221300 197830152 205218000 206073075 211357000 214315998 219811280 222319500 237776625 244374000 247287690 253628400 266783400 274764100 285754664 296426000 317035500 321473997 329716920 333479250 343455125 357193330 366561000 380442600 395660304 412146150 422714000 428631996 444639000 475553250 494575380 533566800 535789995 549528200 571509328 618219225 634071000 642947994 659433840 666958500 686910250 714386660 733122000 760885200 824292300 857263992 889278000 892983325 951106500 989150760 1030365375 1071579990 1099056400 1236438450 1268142000 1285895988 1333917000 1373820500 1428773320 1607369985 1648584600 1714527984 1785966650 1902213000 1978301520 2060730750 2143159980 2472876900 2571791976 2667834000 2678949975 2747641000 2857546640 3091096125 3214739970 3297169200 3571933300 3804426000 4121461500 4286319960 4464916625 4945753800 5143583952 5357899950 5495282000 6182192250 6429479940 7143866600 8036849925 8242923000 8572639920 8929833250 9891507600 10715799900 12364384500 12858959880 13394749875 14287733200 16073699850 16485846000 17859666500 21431599800 24728769000 25717919760 26789499750 32147399700 35719333000 40184249625 42863199600 49457538000 53578999500 64294799400 71438666000 80368499250 107157999000 128589598800 160736998500 214315998000 321473997000 642947994000
• Sum of all divisors σ(n): 2444503233744
• Sum of proper divisors (its aliquot sum) s(n): 1801555239744
• 642947994000 is an abundant number, because the sum of its proper divisors (1801555239744) is greater than itself. Its abundance is 1158607245744

Bases of 642947994000

• Binary: 1001010110110010101011111101000110010000₂
• Hexadecimal: 0x95B2AFD190
• Base-36: 87D6MV80

Squares and roots of 642947994000

• 642947994000 squared (642947994000²) is 413382122988624036000000
• 642947994000 cubed (642947994000³) is 265783206730997108766383784000000000
• The square root of 642947994000 is 801840.3793773421
• The cube root of 642947994000 is 8630.9502884753

Scales and comparisons

• 642,947,994,000 seconds is equal to 20,443 years, 39 weeks, 2 days, 17 hours.
• To count from 1 to 642,947,994,000 would take you about forty thousand, eight hundred eighty-seven 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 642947994000 cubic inches would be around 719.2 feet tall.

Recreational maths with 642947994000

• 642947994000 backwards is 000499749246
• The number of decimal digits it has is: 12
• The sum of 642947994000's digits is 54
• More coming soon!