18389005990668

Names of 18389005990668

• Cardinal: 18389005990668 can be written as Eighteen trillion, three hundred eighty-nine billion, five million, nine hundred ninety thousand, six hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8389005990668 × 10¹³

Factors of 18389005990668

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1321146

Divisors of 18389005990668

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 12 18 36 173 346 519 692 1038 1557 2076 2239 3114 4478 6228 6717 8956 13434 20151 26868 40302 80604 387347 774694 1162041 1318729 1549388 2324082 2637458 3486123 3956187 4648164 5274916 6972246 7912374 11868561 13944492 15824748 23737122 47474244 228140117 456280234 684420351 912560468 1368840702 2053261053 2737681404 2952634231 4106522106 5905268462 8213044212 8857902693 11810536924 17715805386 26573708079 35431610772 53147416158 106294832316 510805721963 1021611443926 1532417165889 2043222887852 3064834331778 4597251497667 6129668663556 9194502995334 18389005990668
• Sum of all divisors σ(n): 46772926636800
• Sum of proper divisors (its aliquot sum) s(n): 28383920646132
• 18389005990668 is an abundant number, because the sum of its proper divisors (28383920646132) is greater than itself. Its abundance is 9994914655464

Bases of 18389005990668

• Binary: 100001011100110000110001010110111101100001100₂
• Hexadecimal: 0x10B9862B7B0C
• Base-36: 6INSJDKB0

Squares and roots of 18389005990668

• 18389005990668 squared (18389005990668²) is 338155541324823592103086224
• 18389005990668 cubed (18389005990668³) is 6218344275199761472481951430147343357632
• The square root of 18389005990668 is 4288240.4306041423
• The cube root of 18389005990668 is 26394.8633594973

Scales and comparisons

• 18,389,005,990,668 seconds is equal to 584,713 years, 26 weeks, 3 days, 11 hours, 37 minutes, 48 seconds.
• To count from 1 to 18,389,005,990,668 would take you about one million, four hundred sixty-one thousand, seven hundred eighty-three 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 18389005990668 cubic inches would be around 2199.6 feet tall.

Recreational maths with 18389005990668

• 18389005990668 backwards is 86609950098381
• The number of decimal digits it has is: 14
• The sum of 18389005990668's digits is 72
• More coming soon!