18214779420

Names of 18214779420

• Cardinal: 18214779420 can be written as Eighteen billion, two hundred fourteen million, seven hundred seventy-nine thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.821477942 × 10¹⁰

Factors of 18214779420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1230

Divisors of 18214779420

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 81 90 108 127 135 162 180 243 254 270 324 381 405 486 508 540 635 729 762 810 972 1093 1143 1215 1270 1458 1524 1620 1905 2186 2187 2286 2430 2540 2916 3279 3429 3645 3810 4372 4374 4572 4860 5465 5715 6558 6561 6858 7290 7620 8748 9837 10287 10930 10935 11430 13116 13122 13716 14580 16395 17145 19674 20574 21860 21870 22860 26244 29511 30861 32790 32805 34290 39348 41148 43740 49185 51435 59022 61722 65580 65610 68580 88533 92583 98370 102870 118044 123444 131220 138811 147555 154305 177066 185166 196740 205740 265599 277622 277749 295110 308610 354132 370332 416433 442665 462915 531198 555244 555498 590220 617220 694055 796797 832866 833247 885330 925830 1062396 1110996 1249299 1327995 1388110 1388745 1593594 1665732 1666494 1770660 1851660 2082165 2390391 2498598 2655990 2776220 2777490 3187188 3332988 3747897 3983985 4164330 4166235 4780782 4997196 5311980 5554980 6246495 7171173 7495794 7967970 8328660 8332470 9561564 11243691 11951955 12492990 14342346 14991588 15935940 16664940 18739485 22487382 23903910 24985980 28684692 33731073 35855865 37478970 44974764 47807820 56218455 67462146 71711730 74957940 101193219 112436910 134924292 143423460 168655365 202386438 224873820 303579657 337310730 404772876 505966095 607159314 674621460 910738971 1011932190 1214318628 1517898285 1821477942 2023864380 3035796570 3642955884 4553694855 6071593140 9107389710 18214779420
• Sum of all divisors σ(n): 57878306304
• Sum of proper divisors (its aliquot sum) s(n): 39663526884
• 18214779420 is an abundant number, because the sum of its proper divisors (39663526884) is greater than itself. Its abundance is 21448747464

Bases of 18214779420

• Binary: 10000111101101011110111101000011100₂
• Hexadecimal: 0x43DAF7A1C
• Base-36: 8D8LXR0

Squares and roots of 18214779420

• 18214779420 squared (18214779420²) is 331778189319255536400
• 18214779420 cubed (18214779420³) is 6043266534817239554139780888000
• The square root of 18214779420 is 134962.1406913805
• The cube root of 18214779420 is 2631.1239356593

Scales and comparisons

• 18,214,779,420 seconds is equal to 579 years, 9 weeks, 4 hours, 57 minutes.
• To count from 1 to 18,214,779,420 would take you about one thousand, one hundred fifty-eight 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 18214779420 cubic inches would be around 219.3 feet tall.

Recreational maths with 18214779420

• 18214779420 backwards is 02497741281
• 18214779420 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18214779420's digits is 45
• More coming soon!