12139470

Names of 12139470

• Cardinal: 12139470 can be written as Twelve million, one hundred thirty-nine thousand, four hundred seventy.

Scientific notation

• Scientific notation: 1.213947 × 10⁷

Factors of 12139470

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2158

Divisors of 12139470

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 81 90 105 126 135 162 189 210 270 315 378 405 567 630 810 945 1134 1890 2141 2835 4282 5670 6423 10705 12846 14987 19269 21410 29974 32115 38538 44961 57807 64230 74935 89922 96345 115614 134883 149870 173421 192690 224805 269766 289035 346842 404649 449610 578070 674415 809298 867105 1213947 1348830 1734210 2023245 2427894 4046490 6069735 12139470
• Sum of all divisors σ(n): 37322208
• Sum of proper divisors (its aliquot sum) s(n): 25182738
• 12139470 is an abundant number, because the sum of its proper divisors (25182738) is greater than itself. Its abundance is 13043268

Bases of 12139470

• Binary: 101110010011101111001110₂
• Hexadecimal: 0xB93BCE
• Base-36: 786VI

Squares and roots of 12139470

• 12139470 squared (12139470²) is 147366731880900
• 12139470 cubed (12139470³) is 1788954020666229123000
• The square root of 12139470 is 3484.1742206727
• The cube root of 12139470 is 229.8263970385

Scales and comparisons

• 12,139,470 seconds is equal to 20 weeks, 12 hours, 4 minutes, 30 seconds.
• To count from 1 to 12,139,470 would take you about thirty weeks!

  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 12139470 cubic inches would be around 19.2 feet tall.

Recreational maths with 12139470

• 12139470 backwards is 07493121
• 12139470 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 12139470's digits is 27
• More coming soon!