20913173820

Names of 20913173820

• Cardinal: 20913173820 can be written as Twenty billion, nine hundred thirteen million, one hundred seventy-three thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.091317382 × 10¹⁰

Factors of 20913173820

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 264

Divisors of 20913173820

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 28 30 33 35 36 42 44 45 55 60 63 66 70 77 84 90 99 105 109 110 126 127 132 140 154 165 180 198 210 218 220 231 252 254 308 315 327 330 381 385 396 420 436 462 495 508 545 630 635 654 660 693 762 763 770 889 924 981 990 1090 1143 1155 1199 1260 1270 1308 1386 1397 1524 1526 1540 1635 1778 1905 1962 1980 2180 2286 2289 2310 2398 2540 2667 2772 2794 3052 3270 3465 3556 3597 3810 3815 3924 4191 4445 4572 4578 4620 4796 4905 5334 5588 5715 5995 6540 6867 6930 6985 7194 7620 7630 8001 8382 8393 8890 9156 9779 9810 10668 10791 11430 11445 11881 11990 12573 13335 13734 13843 13860 13970 14388 15260 16002 16764 16786 17780 17985 19558 19620 20955 21582 22860 22890 23762 23980 25146 25179 26670 27468 27686 27940 29337 32004 33572 34335 35643 35970 39116 40005 41529 41910 41965 43164 45780 47524 48895 50292 50358 53340 53955 55372 58674 59405 62865 68670 69215 71286 71940 75537 80010 83058 83167 83820 83930 88011 96901 97790 100716 106929 107910 117348 118810 124587 125730 125895 130691 137340 138430 142572 146685 151074 152273 160020 166116 166334 167860 176022 178215 193802 195580 207645 213858 215820 237620 249174 249501 251460 251790 261382 276860 290703 293370 302148 304546 332668 352044 356430 377685 387604 392073 415290 415835 427716 440055 456819 484505 498348 499002 503580 522764 534645 581406 586740 609092 622935 653455 712860 748503 755370 761365 784146 830580 831670 872109 880110 913638 914837 969010 998004 1065911 1069290 1162812 1176219 1245870 1247505 1306910 1370457 1453515 1497006 1508887 1510740 1522730 1568292 1663340 1744218 1760220 1827276 1829674 1938020 1960365 2131822 2138580 2284095 2352438 2491740 2495010 2613820 2740914 2744511 2907030 2994012 3017774 3045460 3197733 3488436 3659348 3742515 3920730 4263644 4360545 4526661 4568190 4574185 4704876 4990020 5329555 5481828 5489022 5814060 5881095 6035548 6395466 6852285 7485030 7544435 7841460 8233533 8721090 9053322 9136380 9148370 9593199 10562209 10659110 10978044 11762190 12790932 13579983 13704570 13722555 14970060 15088870 15988665 16467066 16597757 17442180 18106644 18296740 19186398 21124418 21318220 22633305 23524380 27159966 27409140 27445110 30177740 31686627 31977330 32934132 33195514 38372796 41167665 42248836 45266610 47965995 49793271 52811045 54319932 54890220 63373254 63954660 66391028 67899915 82335330 82988785 90533220 95059881 95931990 99586542 105622090 116184299 126746508 135799830 149379813 158433135 164670660 165977570 190119762 191863980 199173084 211244180 232368598 248966355 271599660 298759626 316866270 331955140 348552897 380239524 464737196 475299405 497932710 580921495 597519252 633732540 697105794 746899065 950598810 995865420 1045658691 1161842990 1394211588 1493798130 1742764485 1901197620 2091317382 2323685980 2987596260 3485528970 4182634764 5228293455 6971057940 10456586910 20913173820
• Sum of all divisors σ(n): 80450592768
• Sum of proper divisors (its aliquot sum) s(n): 59537418948
• 20913173820 is an abundant number, because the sum of its proper divisors (59537418948) is greater than itself. Its abundance is 38624245128

Bases of 20913173820

• Binary: 10011011110100001011011010100111100₂
• Hexadecimal: 0x4DE85B53C
• Base-36: 9LV5W70

Squares and roots of 20913173820

• 20913173820 squared (20913173820²) is 437360839225533392400
• 20913173820 cubed (20913173820³) is 9146603252784654017475466968000
• The square root of 20913173820 is 144613.8783796355
• The cube root of 20913173820 is 2755.1165930567

Scales and comparisons

• 20,913,173,820 seconds is equal to 664 years, 50 weeks, 4 days, 14 hours, 57 minutes.
• To count from 1 to 20,913,173,820 would take you about one thousand, three hundred twenty-nine 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 20913173820 cubic inches would be around 229.6 feet tall.

Recreational maths with 20913173820

• 20913173820 backwards is 02837131902
• 20913173820 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 20913173820's digits is 36
• More coming soon!