12991717746

Names of 12991717746

• Cardinal: 12991717746 can be written as Twelve billion, nine hundred ninety-one million, seven hundred seventeen thousand, seven hundred forty-six.

Scientific notation

• Scientific notation: 1.2991717746 × 10¹⁰

Factors of 12991717746

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 9834

Divisors of 12991717746

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 42 63 103 126 206 309 618 721 927 1442 1854 2163 4326 6489 9719 10609 12978 19438 21218 29157 31827 58314 63654 68033 74263 87471 95481 136066 148526 174942 190962 204099 222789 408198 445578 612297 668367 1001057 1224594 1336734 2002114 3003171 6006342 7007399 9009513 14014798 18019026 21022197 42044394 63066591 103108871 126133182 206217742 309326613 618653226 721762097 927979839 1443524194 1855959678 2165286291 4330572582 6495858873 12991717746
• Sum of all divisors σ(n): 32488672320
• Sum of proper divisors (its aliquot sum) s(n): 19496954574
• 12991717746 is an abundant number, because the sum of its proper divisors (19496954574) is greater than itself. Its abundance is 6505236828

Bases of 12991717746

• Binary: 1100000110010111011110000101110010₂
• Hexadecimal: 0x3065DE172
• Base-36: 5YUXLKI

Squares and roots of 12991717746

• 12991717746 squared (12991717746²) is 168784729991731320516
• 12991717746 cubed (12991717746³) is 2192803571887394230011731076936
• The square root of 12991717746 is 113981.2166367775
• The cube root of 12991717746 is 2350.8352393037

Scales and comparisons

• 12,991,717,746 seconds is equal to 413 years, 5 weeks, 2 hours, 29 minutes, 6 seconds.
• To count from 1 to 12,991,717,746 would take you about eight hundred twenty-six 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 12991717746 cubic inches would be around 195.9 feet tall.

Recreational maths with 12991717746

• 12991717746 backwards is 64771719921
• The number of decimal digits it has is: 11
• The sum of 12991717746's digits is 54
• More coming soon!