12987198936

Names of 12987198936

• Cardinal: 12987198936 can be written as Twelve billion, nine hundred eighty-seven million, one hundred ninety-eight thousand, nine hundred thirty-six.

Scientific notation

• Scientific notation: 1.2987198936 × 10¹⁰

Factors of 12987198936

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1748

Divisors of 12987198936

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 179 216 257 358 514 537 716 771 1028 1074 1307 1432 1542 1611 2056 2148 2313 2614 3084 3222 3921 4296 4626 4833 5228 6168 6444 6939 7842 9252 9666 10456 11763 12888 13878 15684 18504 19332 23526 27756 31368 35289 38664 46003 47052 55512 70578 92006 94104 138009 141156 184012 233953 276018 282312 335899 368024 414027 467906 552036 671798 701859 828054 935812 1007697 1104072 1242081 1343596 1403718 1656108 1871624 2015394 2105577 2484162 2687192 2807436 3023091 3312216 4030788 4211154 4968324 5614872 6046182 6316731 8061576 8422308 9069273 9936648 12092364 12633462 16844616 18138546 24184728 25266924 36277092 50533848 60125921 72554184 120251842 180377763 240503684 360755526 481007368 541133289 721511052 1082266578 1443022104 1623399867 2164533156 3246799734 4329066312 6493599468 12987198936
• Sum of all divisors σ(n): 36446112000
• Sum of proper divisors (its aliquot sum) s(n): 23458913064
• 12987198936 is an abundant number, because the sum of its proper divisors (23458913064) is greater than itself. Its abundance is 10471714128

Bases of 12987198936

• Binary: 1100000110000110001110110111011000₂
• Hexadecimal: 0x30618EDD8
• Base-36: 5YS8QU0

Squares and roots of 12987198936

• 12987198936 squared (12987198936²) is 168667336203239532096
• 12987198936 cubed (12987198936³) is 2190516249276666730990309049856
• The square root of 12987198936 is 113961.3923045871
• The cube root of 12987198936 is 2350.5626500057

Scales and comparisons

• 12,987,198,936 seconds is equal to 412 years, 49 weeks, 3 days, 19 hours, 15 minutes, 36 seconds.
• To count from 1 to 12,987,198,936 would take you about eight hundred twenty-five 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 12987198936 cubic inches would be around 195.9 feet tall.

Recreational maths with 12987198936

• 12987198936 backwards is 63989178921
• The number of decimal digits it has is: 11
• The sum of 12987198936's digits is 63
• More coming soon!