18989620965

Names of 18989620965

• Cardinal: 18989620965 can be written as Eighteen billion, nine hundred eighty-nine million, six hundred twenty thousand, nine hundred sixty-five.

Scientific notation

• Scientific notation: 1.8989620965 × 10¹⁰

Factors of 18989620965

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 50397

Divisors of 18989620965

• Number of divisors d(n): 120
• Complete list of divisors:
  1 3 5 7 9 15 19 21 27 35 45 49 57 63 81 95 105 133 135 147 171 189 245 285 315 399 405 441 513 567 665 735 855 931 945 1197 1323 1539 1995 2205 2565 2793 2835 3591 3969 4655 5985 6615 7695 8379 10773 13965 17955 19845 25137 41895 50363 53865 75411 125685 151089 251815 352541 377055 453267 755445 956897 1057623 1359801 1762705 2266335 2467787 2870691 3172869 4079403 4784485 5288115 6698279 6799005 7403361 8612073 9518607 12338935 14353455 15864345 20094837 20397015 22210083 25836219 28555821 33491395 37016805 43060365 46887953 47593035 60284511 66630249 77508657 100474185 111050415 129181095 140663859 142779105 180853533 199890747 234439765 301422555 333151245 387543285 421991577 542560599 703319295 904267665 999453735 1265974731 2109957885 2712802995 3797924193 6329873655 18989620965
• Sum of all divisors σ(n): 41683260960
• Sum of proper divisors (its aliquot sum) s(n): 22693639995
• 18989620965 is an abundant number, because the sum of its proper divisors (22693639995) is greater than itself. Its abundance is 3704019030

Bases of 18989620965

• Binary: 10001101011110111101001111011100101₂
• Hexadecimal: 0x46BDE9EE5
• Base-36: 8Q1XHB9

Squares and roots of 18989620965

• 18989620965 squared (18989620965²) is 360605704394367531225
• 18989620965 cubed (18989620965³) is 6847765644265874298865552132125
• The square root of 18989620965 is 137802.8336609957
• The cube root of 18989620965 is 2667.9156754123

Scales and comparisons

• 18,989,620,965 seconds is equal to 603 years, 42 weeks, 1 day, 6 hours, 42 minutes, 45 seconds.
• To count from 1 to 18,989,620,965 would take you about one thousand, two hundred seven 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 18989620965 cubic inches would be around 222.3 feet tall.

Recreational maths with 18989620965

• 18989620965 backwards is 56902698981
• 18989620965 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18989620965's digits is 63
• More coming soon!