18679984091640

Names of 18679984091640

• Cardinal: 18679984091640 can be written as Eighteen trillion, six hundred seventy-nine billion, nine hundred eighty-four million, ninety-one thousand, six hundred forty.

Scientific notation

• Scientific notation: 1.867998409164 × 10¹³

Factors of 18679984091640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 149

Divisors of 18679984091640

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 20 24 30 36 40 45 60 72 90 120 139 180 278 360 417 556 695 834 1112 1251 1390 1668 2085 2502 2780 3336 4170 5004 5560 6255 8340 10008 12510 16680 19321 25020 38642 50040 57963 77284 96605 115926 154568 173889 193210 231852 289815 347778 386420 463704 579630 695556 772840 869445 1159260 1391112 1738890 2318520 2685619 3477780 5371238 6955560 8056857 10742476 13428095 16113714 21484952 24170571 26856190 32227428 40284285 48341142 53712380 64454856 80568570 96682284 107424760 120852855 161137140 193364568 241705710 322274280 373301041 483411420 746602082 966822840 1119903123 1493204164 1866505205 2239806246 2986408328 3359709369 3733010410 4479612492 5599515615 6719418738 7466020820 8959224984 11199031230 13438837476 14932041640 16798546845 22398062460 26877674952 33597093690 44796124920 51888844699 67194187380 103777689398 134388374760 155666534097 207555378796 259444223495 311333068194 415110757592 466999602291 518888446990 622666136388 778332670485 933999204582 1037776893980 1245332272776 1556665340970 1867998409164 2075553787960 2334998011455 3113330681940 3735996818328 4669996022910 6226661363880 9339992045820 18679984091640
• Sum of all divisors σ(n): 61149875459400
• Sum of proper divisors (its aliquot sum) s(n): 42469891367760
• 18679984091640 is an abundant number, because the sum of its proper divisors (42469891367760) is greater than itself. Its abundance is 23789907276120

Bases of 18679984091640

• Binary: 100001111110101000101110100001111000111111000₂
• Hexadecimal: 0x10FD45D0F1F8
• Base-36: 6MDGS83Y0

Squares and roots of 18679984091640

• 18679984091640 squared (18679984091640²) is 348941805663923475917889600
• 18679984091640 cubed (18679984091640³) is 6518227378710226978412510374881802944000
• The square root of 18679984091640 is 4322034.7166167001
• The cube root of 18679984091640 is 26533.3549810975

Scales and comparisons

• 18,679,984,091,640 seconds is equal to 593,965 years, 37 weeks, 13 hours, 54 minutes.
• To count from 1 to 18,679,984,091,640 would take you about one million, four hundred eighty-four thousand, nine hundred fourteen 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 18679984091640 cubic inches would be around 2211.1 feet tall.

Recreational maths with 18679984091640

• 18679984091640 backwards is 04619048997681
• 18679984091640 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18679984091640's digits is 72
• More coming soon!