12391889346

Names of 12391889346

• Cardinal: 12391889346 can be written as Twelve billion, three hundred ninety-one million, eight hundred eighty-nine thousand, three hundred forty-six.

Scientific notation

• Scientific notation: 1.2391889346 × 10¹⁰

Factors of 12391889346

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1994

Divisors of 12391889346

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 18 31 62 93 186 279 487 558 961 974 1461 1471 1922 2883 2922 2942 4383 4413 5766 8649 8766 8826 13239 15097 17298 26478 30194 45291 45601 90582 91202 135873 136803 271746 273606 410409 468007 716377 820818 936014 1404021 1413631 1432754 2149131 2808042 2827262 4212063 4240893 4298262 6447393 8424126 8481786 12722679 12894786 22207687 25445358 44415374 66623061 133246122 199869183 399738366 688438297 1376876594 2065314891 4130629782 6195944673 12391889346
• Sum of all divisors σ(n): 27818998272
• Sum of proper divisors (its aliquot sum) s(n): 15427108926
• 12391889346 is an abundant number, because the sum of its proper divisors (15427108926) is greater than itself. Its abundance is 3035219580

Bases of 12391889346

• Binary: 1011100010100111010011100111000010₂
• Hexadecimal: 0x2E29D39C2
• Base-36: 5OXT70I

Squares and roots of 12391889346

• 12391889346 squared (12391889346²) is 153558921563508307716
• 12391889346 cubed (12391889346³) is 1902885164106088260768389993736
• The square root of 12391889346 is 111318.8633880171
• The cube root of 12391889346 is 2314.0842984649

Scales and comparisons

• 12,391,889,346 seconds is equal to 394 years, 1 week, 1 day, 15 hours, 29 minutes, 6 seconds.
• To count from 1 to 12,391,889,346 would take you about seven hundred eighty-eight 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 12391889346 cubic inches would be around 192.8 feet tall.

Recreational maths with 12391889346

• 12391889346 backwards is 64398819321
• The number of decimal digits it has is: 11
• The sum of 12391889346's digits is 54
• More coming soon!