1638645769216

Names of 1638645769216

• Cardinal: 1638645769216 can be written as One trillion, six hundred thirty-eight billion, six hundred forty-five million, seven hundred sixty-nine thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.638645769216 × 10¹²

Factors of 1638645769216

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 478

Divisors of 1638645769216

• Number of divisors d(n): 99
• Complete list of divisors:
  1 2 4 8 16 32 64 109 128 218 256 367 436 512 734 872 1024 1468 1744 2936 3488 5872 6976 11744 11881 13952 23488 23762 27904 40003 46976 47524 55808 80006 93952 95048 111616 134689 160012 187904 190096 269378 320024 375808 380192 538756 640048 760384 1077512 1280096 1520768 2155024 2560192 3041536 4310048 4360327 5120384 6083072 8620096 8720654 10240768 12166144 14681101 17240192 17441308 20481536 29362202 34480384 34882616 40963072 58724404 68960768 69765232 117448808 137921536 139530464 234897616 279060928 469795232 558121856 939590464 1116243712 1600240009 1879180928 2232487424 3200480018 3758361856 4464974848 6400960036 7516723712 12801920072 15033447424 25603840144 51207680288 102415360576 204830721152 409661442304 819322884608 1638645769216
• Sum of all divisors σ(n): 3315051992889
• Sum of proper divisors (its aliquot sum) s(n): 1676406223673
• 1638645769216 is an abundant number, because the sum of its proper divisors (1676406223673) is greater than itself. Its abundance is 37760454457

Bases of 1638645769216

• Binary: 10111110110000110111001100010010000000000₂
• Hexadecimal: 0x17D86E62400
• Base-36: KWS7DRLS

Squares and roots of 1638645769216

• 1638645769216 squared (1638645769216²) is 2685159956969496333254656
• 1638645769216 cubed (1638645769216³) is 4400026003156281779254167261933469696
• 1638645769216 is a perfect square number. Its square root is 1280096
• The cube root of 1638645769216 is 11789.4902333213

Scales and comparisons

• 1,638,645,769,216 seconds is equal to 52,103 years, 45 weeks, 12 hours, 20 minutes, 16 seconds.
• To count from 1 to 1,638,645,769,216 would take you about one hundred thirty thousand, two hundred fifty-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 1638645769216 cubic inches would be around 982.5 feet tall.

Recreational maths with 1638645769216

• 1638645769216 backwards is 6129675468361
• 1638645769216 is a Harshad number.
• The number of decimal digits it has is: 13
• The sum of 1638645769216's digits is 64
• More coming soon!