13218271836

Names of 13218271836

• Cardinal: 13218271836 can be written as Thirteen billion, two hundred eighteen million, two hundred seventy-one thousand, eight hundred thirty-six.

Scientific notation

• Scientific notation: 1.3218271836 × 10¹⁰

Factors of 13218271836

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 4283

Divisors of 13218271836

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 121 132 154 231 242 308 331 363 462 484 662 726 847 924 993 1324 1452 1694 1986 2317 2541 3388 3641 3929 3972 4634 5082 6951 7282 7858 9268 10164 10923 11787 13902 14564 15716 21846 23574 25487 27503 27804 40051 43219 43692 47148 50974 55006 76461 80102 82509 86438 101948 110012 120153 129657 152922 160204 165018 172876 240306 259314 280357 302533 305844 330036 475409 480612 518628 560714 605066 841071 907599 950818 1121428 1210132 1300499 1426227 1682142 1815198 1901636 2600998 2852454 3327863 3364284 3630396 3901497 5201996 5704908 6655726 7802994 9103493 9983589 13311452 14305489 15605988 18206986 19967178 27310479 28610978 36413972 39934356 42916467 54620958 57221956 85832934 100138423 109241916 157360379 171665868 200276846 300415269 314720758 400553692 472081137 600830538 629441516 944162274 1101522653 1201661076 1888324548 2203045306 3304567959 4406090612 6609135918 13218271836
• Sum of all divisors σ(n): 38871409920
• Sum of proper divisors (its aliquot sum) s(n): 25653138084
• 13218271836 is an abundant number, because the sum of its proper divisors (25653138084) is greater than itself. Its abundance is 12434866248

Bases of 13218271836

• Binary: 1100010011110111101101001001011100₂
• Hexadecimal: 0x313DED25C
• Base-36: 62LTFTO

Squares and roots of 13218271836

• 13218271836 squared (13218271836²) is 174722710330390810896
• 13218271836 cubed (13218271836³) is 2309532281069791110539798725056
• The square root of 13218271836 is 114970.7433915255
• The cube root of 13218271836 is 2364.4214629581

Scales and comparisons

• 13,218,271,836 seconds is equal to 420 years, 15 weeks, 4 days, 6 hours, 10 minutes, 36 seconds.
• To count from 1 to 13,218,271,836 would take you about eight hundred forty 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 13218271836 cubic inches would be around 197 feet tall.

Recreational maths with 13218271836

• 13218271836 backwards is 63817281231
• 13218271836 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13218271836's digits is 42
• More coming soon!