813015821420

Names of 813015821420

• Cardinal: 813015821420 can be written as Eight hundred thirteen billion, fifteen million, eight hundred twenty-one thousand, four hundred twenty.

Scientific notation

• Scientific notation: 8.1301582142 × 10¹¹

Factors of 813015821420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 631

Divisors of 813015821420

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 4 5 10 11 20 22 31 44 55 61 62 110 121 122 124 155 220 242 244 305 310 341 484 521 605 610 620 671 682 961 1042 1210 1220 1331 1342 1364 1705 1891 1922 2084 2420 2605 2662 2684 3355 3410 3751 3782 3844 4805 5210 5324 5731 6655 6710 6820 7381 7502 7564 9455 9610 10420 10571 11462 13310 13420 14762 15004 16151 18755 18910 19220 20801 21142 22924 26620 28655 29524 31781 32302 36905 37510 37820 41261 41602 42284 52855 57310 58621 63041 63562 64604 73810 75020 80755 81191 82522 83204 104005 105710 114620 116281 117242 126082 127124 147620 158905 161510 162382 165044 177661 206305 208010 211420 228811 232562 234484 252164 293105 315205 317810 323020 324764 349591 355322 405955 412610 416020 457622 465124 500681 581405 586210 630410 635620 644831 693451 699182 710644 811910 825220 888305 915244 985211 1001362 1144055 1162810 1172420 1260820 1279091 1289662 1386902 1398364 1623820 1747955 1776610 1954271 1970422 2002724 2288110 2325620 2503405 2516921 2558182 2579324 2773804 3224155 3467255 3495910 3553220 3845501 3908542 3940844 4576220 4926055 5006810 5033842 5116364 5507491 6395455 6448310 6934510 6991820 7093141 7691002 7817084 9771355 9852110 10013620 10067684 10837321 11014982 12584605 12790910 12896620 13869020 14186282 15382004 19227505 19542710 19704220 21496981 21674642 22029964 25169210 25581820 27537455 28372564 30541541 35465705 38455010 39085420 42300511 42993962 43349284 50338420 54186605 55074910 60582401 61083082 70931410 76910020 78024551 84601022 85987924 107484905 108373210 110149820 119210531 121164802 122166164 141862820 152707705 156049102 169202044 211502555 214969810 216746420 238421062 242329604 302912005 305415410 312098204 335956951 390122755 423005110 429939620 476842124 596052655 605824010 610830820 666406411 671913902 780245510 846010220 1192105310 1211648020 1311315841 1332812822 1343827804 1560491020 1679784755 2384210620 2622631682 2665625644 3332032055 3359569510 3695526461 5245263364 6556579205 6664064110 6719139020 7391052922 13113158410 13328128220 14782105844 18477632305 26226316820 36955264610 40650791071 73910529220 81301582142 162603164284 203253955355 406507910710 813015821420
• Sum of all divisors σ(n): 1976067648576
• Sum of proper divisors (its aliquot sum) s(n): 1163051827156
• 813015821420 is an abundant number, because the sum of its proper divisors (1163051827156) is greater than itself. Its abundance is 350036005736

Bases of 813015821420

• Binary: 1011110101001011100001001110110001101100₂
• Hexadecimal: 0xBD4B84EC6C
• Base-36: ADHSMMP8

Squares and roots of 813015821420

• 813015821420 squared (813015821420²) is 660994725879237330816400
• 813015821420 cubed (813015821420³) is 537399170014995870236823725207288000
• The square root of 813015821420 is 901673.8997109765
• The cube root of 813015821420 is 9333.2521504191

Scales and comparisons

• 813,015,821,420 seconds is equal to 25,851 years, 20 weeks, 1 day, 8 hours, 10 minutes, 20 seconds.
• To count from 1 to 813,015,821,420 would take you about fifty-one thousand, seven hundred two 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 813015821420 cubic inches would be around 777.8 feet tall.

Recreational maths with 813015821420

• 813015821420 backwards is 024128510318
• The number of decimal digits it has is: 12
• The sum of 813015821420's digits is 35
• More coming soon!