389859138

Names of 389859138

• Cardinal: 389859138 can be written as Three hundred eighty-nine million, eight hundred fifty-nine thousand, one hundred thirty-eight.

Scientific notation

• Scientific notation: 3.89859138 × 10⁸

Factors of 389859138

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 222

Divisors of 389859138

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 18 19 38 57 59 114 118 139 171 177 278 342 354 417 531 834 1062 1121 1251 2242 2502 2641 3363 5282 6726 7923 8201 10089 15846 16402 19321 20178 23769 24603 38642 47538 49206 57963 73809 115926 147618 155819 173889 311638 347778 367099 467457 734198 934914 1101297 1139939 1402371 2202594 2279878 2804742 3303891 3419817 6607782 6839634 10259451 20518902 21658841 43317682 64976523 129953046 194929569 389859138
• Sum of all divisors σ(n): 910774800
• Sum of proper divisors (its aliquot sum) s(n): 520915662
• 389859138 is an abundant number, because the sum of its proper divisors (520915662) is greater than itself. Its abundance is 131056524

Bases of 389859138

• Binary: 10111001111001100011101000010₂
• Hexadecimal: 0x173CC742
• Base-36: 6G418I

Squares and roots of 389859138

• 389859138 squared (389859138²) is 151990147482103044
• 389859138 cubed (389859138³) is 59254747881865563161016072
• The square root of 389859138 is 19744.8509237219
• The cube root of 389859138 is 730.5263845919

Scales and comparisons

• 389,859,138 seconds is equal to 12 years, 20 weeks, 4 days, 6 hours, 12 minutes, 18 seconds.
• To count from 1 to 389,859,138 would take you about eighteen 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 389859138 cubic inches would be around 60.9 feet tall.

Recreational maths with 389859138

• 389859138 backwards is 831958983
• The number of decimal digits it has is: 9
• The sum of 389859138's digits is 54
• More coming soon!