813194855720

Names of 813194855720

• Cardinal: 813194855720 can be written as Eight hundred thirteen billion, one hundred ninety-four million, eight hundred fifty-five thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 8.1319485572 × 10¹¹

Factors of 813194855720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9680

Divisors of 813194855720

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 4 5 8 10 13 20 26 31 40 52 62 65 104 124 130 155 169 248 260 310 338 403 520 620 676 806 845 961 1240 1352 1612 1690 1922 2015 2197 3224 3380 3844 4030 4394 4805 5239 6760 7688 8060 8788 9610 9629 10478 10985 12493 16120 17576 19220 19258 20956 21970 24986 26195 38440 38516 41912 43940 48145 49972 52390 62465 68107 77032 87880 96290 99944 104780 124930 125177 136214 162409 192580 209560 249860 250354 272428 298499 324818 340535 385160 499720 500708 544856 596998 625885 649636 681070 812045 1001416 1193996 1251770 1299272 1362140 1492495 1624090 1627301 2111317 2387992 2503540 2724280 2984990 3248180 3254602 3880487 4222634 5007080 5969980 6496360 6509204 7760974 8136505 8445268 9253469 10556585 11939960 13018408 15521948 16273010 16890536 18506938 19402435 21113170 21154913 31043896 32546020 37013876 38804870 42226340 42309826 46267345 50446331 65092040 74027752 77609740 84452680 84619652 92534690 100892662 105774565 120295097 155219480 169239304 185069380 201785324 211549130 240590194 252231655 370138760 403570648 423098260 481180388 504463310 601475485 655802303 846196520 962360776 1008926620 1202950970 1311604606 1563836261 2017853240 2405901940 2623209212 3127672522 3279011515 4811803880 5246418424 6255345044 6558023030 7819181305 12510690088 13116046060 15638362610 20329871393 26232092120 31276725220 40659742786 62553450440 81319485572 101649356965 162638971144 203298713930 406597427860 813194855720
• Sum of all divisors σ(n): 2048306778000
• Sum of proper divisors (its aliquot sum) s(n): 1235111922280
• 813194855720 is an abundant number, because the sum of its proper divisors (1235111922280) is greater than itself. Its abundance is 421917066560

Bases of 813194855720

• Binary: 1011110101010110001100001100010100101000₂
• Hexadecimal: 0xBD5630C528
• Base-36: ADKR7YG8

Squares and roots of 813194855720

• 813194855720 squared (813194855720²) is 661285873369471616718400
• 813194855720 cubed (813194855720³) is 537754270384361661609954427869248000
• The square root of 813194855720 is 901773.1730984239
• The cube root of 813194855720 is 9333.9371922849

Scales and comparisons

• 813,194,855,720 seconds is equal to 25,857 years, 4 weeks, 1 day, 11 hours, 55 minutes, 20 seconds.
• To count from 1 to 813,194,855,720 would take you about fifty-one thousand, seven hundred fourteen 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 813194855720 cubic inches would be around 777.8 feet tall.

Recreational maths with 813194855720

• 813194855720 backwards is 027558491318
• The number of decimal digits it has is: 12
• The sum of 813194855720's digits is 53
• More coming soon!