1820185818

Names of 1820185818

• Cardinal: 1820185818 can be written as One billion, eight hundred twenty million, one hundred eighty-five thousand, eight hundred eighteen.

Scientific notation

• Scientific notation: 1.820185818 × 10⁹

Factors of 1820185818

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1233

Divisors of 1820185818

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 11 17 22 33 34 51 66 102 121 139 187 242 278 363 374 417 561 726 834 1061 1122 1529 2057 2122 2363 3058 3183 4114 4587 4726 6171 6366 7089 9174 11671 12342 14178 16819 18037 23342 25993 33638 35013 36074 50457 51986 54111 70026 77979 100914 108222 128381 147479 155958 198407 256762 285923 294958 385143 396814 442437 571846 595221 770286 857769 884874 1190442 1622269 1715538 2182477 2507143 3244538 4364954 4866807 5014286 6547431 7521429 9733614 13094862 15042858 17844959 27578573 35689918 53534877 55157146 82735719 107069754 165471438 303364303 606728606 910092909 1820185818
• Sum of all divisors σ(n): 4271279040
• Sum of proper divisors (its aliquot sum) s(n): 2451093222
• 1820185818 is an abundant number, because the sum of its proper divisors (2451093222) is greater than itself. Its abundance is 630907404

Bases of 1820185818

• Binary: 1101100011111011101010011011010₂
• Hexadecimal: 0x6C7DD4DA
• Base-36: U3OWD6

Squares and roots of 1820185818

• 1820185818 squared (1820185818²) is 3313076412048329124
• 1820185818 cubed (1820185818³) is 6030414699160693002101163432
• The square root of 1820185818 is 42663.6357803693
• The cube root of 1820185818 is 1220.9706997267

Scales and comparisons

• 1,820,185,818 seconds is equal to 57 years, 45 weeks, 3 days, 23 hours, 10 minutes, 18 seconds.
• To count from 1 to 1,820,185,818 would take you about one hundred fifteen 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 1820185818 cubic inches would be around 101.7 feet tall.

Recreational maths with 1820185818

• 1820185818 backwards is 8185810281
• The number of decimal digits it has is: 10
• The sum of 1820185818's digits is 42
• More coming soon!