19989394425

Names of 19989394425

• Cardinal: 19989394425 can be written as Nineteen billion, nine hundred eighty-nine million, three hundred ninety-four thousand, four hundred twenty-five.

Scientific notation

• Scientific notation: 1.9989394425 × 10¹⁰

Factors of 19989394425

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 479

Divisors of 19989394425

• Number of divisors d(n): 432
• Complete list of divisors:
  1 3 5 7 9 11 13 15 21 25 31 33 35 39 45 49 55 63 65 75 77 91 93 99 105 117 143 147 155 165 175 195 217 225 231 245 273 275 279 315 325 341 385 403 409 429 441 455 465 495 525 539 585 637 651 693 715 735 775 819 825 975 1001 1023 1085 1155 1209 1225 1227 1287 1365 1395 1519 1575 1617 1705 1911 1925 1953 2015 2045 2145 2205 2275 2325 2387 2475 2695 2821 2863 2925 3003 3069 3185 3255 3465 3575 3627 3675 3681 4095 4433 4499 4557 4851 5005 5115 5317 5425 5733 5775 6045 6135 6435 6825 6975 7007 7161 7595 8085 8463 8525 8589 9009 9555 9765 10075 10225 10725 11025 11935 12679 13299 13475 13497 13671 14105 14315 15015 15345 15925 15951 16275 16709 17325 18135 18405 19747 20041 20475 21021 21483 22165 22495 22785 24255 25025 25389 25575 25767 26585 28665 30225 30675 31031 31493 32175 35035 35805 37219 37975 38037 39897 40425 40491 42315 42945 45045 47775 47853 48825 50127 58487 59241 59675 60123 63063 63395 66495 67485 68355 70525 71575 75075 76725 79755 83545 88753 90675 92025 93093 94479 98735 100205 105105 107415 110825 111657 112475 113925 114111 121275 126945 128835 132925 139469 143325 150381 155155 157465 164827 175175 175461 177723 179025 180369 186095 190185 199485 202455 211575 214725 217217 220451 225225 239265 250635 260533 266259 279279 283437 292435 296205 300615 315315 316975 332475 334971 337425 341775 398775 409409 417725 418407 443765 465465 472395 493675 494481 501025 525525 526383 537075 558285 570555 621271 634725 644175 651651 661353 697345 751905 775775 781599 787325 798777 824135 877305 888615 901845 930475 950925 976283 997425 1012275 1086085 1102255 1153789 1196325 1228227 1253175 1255221 1302665 1331295 1396395 1417185 1462175 1481025 1483443 1503075 1576575 1674855 1813097 1863813 1954953 1984059 2047045 2092035 2218825 2327325 2344797 2361975 2472405 2631915 2791425 2852775 2865863 2928849 3106355 3258255 3306765 3461367 3486725 3684681 3759525 3907995 3993885 4120675 4386525 4443075 4509225 4881415 5430425 5439291 5511275 5591439 5768945 6141135 6276105 6513325 6656475 6833981 6981975 7085925 7417215 8076523 8374275 8597589 8786547 9065485 9319065 9774765 9920295 10235225 10384101 10460175 11723985 12362025 12691679 13159575 14329315 14644245 15531775 16291275 16317873 16533825 17306835 18423405 19539975 19969425 20501943 24229569 24407075 25792767 27196455 27957195 28844725 30705675 31380525 34169905 37086075 38075037 40382615 42987945 43932735 45327425 46595325 48873825 49601475 51920505 58619925 61505829 63458395 71646575 72688707 73221225 81589365 86534175 88841753 92117025 102509715 114225111 121147845 128963835 135982275 139785975 170849525 190375185 201913075 214939725 219663675 259602525 266525259 307529145 317291975 363443535 407946825 444208765 512548575 571125555 605739225 644819175 799575777 951875925 1332626295 1537645725 1817217675 2221043825 2855627775 3997878885 6663131475 19989394425
• Sum of all divisors σ(n): 50631759360
• Sum of proper divisors (its aliquot sum) s(n): 30642364935
• 19989394425 is an abundant number, because the sum of its proper divisors (30642364935) is greater than itself. Its abundance is 10652970510

Bases of 19989394425

• Binary: 10010100111011101011111001111111001₂
• Hexadecimal: 0x4A775F3F9
• Base-36: 96L63G9

Squares and roots of 19989394425

• 19989394425 squared (19989394425²) is 399575889478221080625
• 19989394425 cubed (19989394425³) is 7987280057500368627962850515625
• The square root of 19989394425 is 141383.8548951047
• The cube root of 19989394425 is 2713.9377324339

Scales and comparisons

• 19,989,394,425 seconds is equal to 635 years, 31 weeks, 1 day, 17 hours, 33 minutes, 45 seconds.
• To count from 1 to 19,989,394,425 would take you about one thousand, two hundred seventy-one 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 19989394425 cubic inches would be around 226.2 feet tall.

Recreational maths with 19989394425

• 19989394425 backwards is 52449398991
• 19989394425 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 19989394425's digits is 63
• More coming soon!