812820400290

Names of 812820400290

• Cardinal: 812820400290 can be written as Eight hundred twelve billion, eight hundred twenty million, four hundred thousand, two hundred ninety.

Scientific notation

• Scientific notation: 8.1282040029 × 10¹¹

Factors of 812820400290

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1448

Divisors of 812820400290

• Number of divisors d(n): 256
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 27 30 45 47 54 90 94 135 141 191 235 270 282 382 423 443 470 573 705 757 846 886 955 1146 1269 1329 1410 1514 1719 1910 2115 2215 2271 2538 2658 2865 3438 3785 3987 4230 4430 4542 5157 5730 6345 6645 6813 7570 7974 8595 8977 10314 11355 11961 12690 13290 13626 17190 17954 19935 20439 20821 22710 23922 25785 26931 34065 35579 39870 40878 41642 44885 51570 53862 59805 62463 68130 71158 80793 84613 89770 102195 104105 106737 119610 124926 134655 144587 161586 169226 177895 187389 204390 208210 213474 242379 253839 269310 289174 312315 320211 335351 355790 374778 403965 423065 433761 484758 507678 533685 562167 624630 640422 670702 722935 761517 807930 846130 867522 936945 960633 1006053 1067370 1124334 1211895 1269195 1301283 1445870 1523034 1601055 1676755 1873890 1921266 2012106 2168805 2284551 2423790 2538390 2602566 2810835 3018159 3202110 3353510 3807585 3903849 3976811 4337610 4569102 4803165 5030265 5621670 6036318 6506415 6795589 7615170 7807698 7953622 9054477 9606330 10060530 11422755 11930433 13012830 13591178 15090795 15761497 18108954 19519245 19884055 20386767 22845510 23860866 30181590 31522994 33977945 35791299 39038490 39768110 40773534 45272385 47284491 59652165 61160301 64052041 67955890 71582598 78807485 90544770 94568982 101933835 107373897 119304330 122320602 128104082 141853473 157614970 178956495 183480903 192156123 203867670 214747794 236422455 283706946 305801505 320260205 357912990 366961806 384312246 425560419 472844910 536869485 576468369 611603010 640520410 709267365 851120838 917404515 960780615 1073738970 1152936738 1418534730 1729405107 1834809030 1921561230 2127802095 2882341845 3010445927 3458810214 4255604190 5764683690 6020891854 8647025535 9031337781 15052229635 17294051070 18062675562 27094013343 30104459270 45156688905 54188026686 81282040029 90313377810 135470066715 162564080058 270940133430 406410200145 812820400290
• Sum of all divisors σ(n): 2233197527040
• Sum of proper divisors (its aliquot sum) s(n): 1420377126750
• 812820400290 is an abundant number, because the sum of its proper divisors (1420377126750) is greater than itself. Its abundance is 607556726460

Bases of 812820400290

• Binary: 1011110100111111110111110000100010100010₂
• Hexadecimal: 0xBD3FDF08A2
• Base-36: ADEKA2SI

Squares and roots of 812820400290

• 812820400290 squared (812820400290²) is 660677003127595832084100
• 812820400290 cubed (812820400290³) is 537011746144570026179933786944389000
• The square root of 812820400290 is 901565.5274521091
• The cube root of 812820400290 is 9332.5042925511

Scales and comparisons

• 812,820,400,290 seconds is equal to 25,845 years, 9 weeks, 12 hours, 31 minutes, 30 seconds.
• To count from 1 to 812,820,400,290 would take you about fifty-one thousand, six hundred ninety 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 812820400290 cubic inches would be around 777.7 feet tall.

Recreational maths with 812820400290

• 812820400290 backwards is 092004028218
• The number of decimal digits it has is: 12
• The sum of 812820400290's digits is 36
• More coming soon!