12987209508

Names of 12987209508

• Cardinal: 12987209508 can be written as Twelve billion, nine hundred eighty-seven million, two hundred nine thousand, five hundred eight.

Scientific notation

• Scientific notation: 1.2987209508 × 10¹⁰

Factors of 12987209508

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1699032

Divisors of 12987209508

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 39 42 49 52 78 84 91 98 147 156 182 196 273 294 364 546 588 637 1092 1274 1911 2548 3822 7644 1699007 3398014 5097021 6796028 10194042 11893049 20388084 22087091 23786098 35679147 44174182 47572196 66261273 71358294 83251343 88348364 132522546 142716588 154609637 166502686 249754029 265045092 309219274 333005372 463828911 499508058 618438548 927657822 999016116 1082267459 1855315644 2164534918 3246802377 4329069836 6493604754 12987209508
• Sum of all divisors σ(n): 37962634752
• Sum of proper divisors (its aliquot sum) s(n): 24975425244
• 12987209508 is an abundant number, because the sum of its proper divisors (24975425244) is greater than itself. Its abundance is 11988215736

Bases of 12987209508

• Binary: 1100000110000110010001011100100100₂
• Hexadecimal: 0x306191724
• Base-36: 5YS8YZO

Squares and roots of 12987209508

• 12987209508 squared (12987209508²) is 168667610804685602064
• 12987209508 cubed (12987209508³) is 2190521598734256382076285224512
• The square root of 12987209508 is 113961.4386887073
• The cube root of 12987209508 is 2350.5632878165

Scales and comparisons

• 12,987,209,508 seconds is equal to 412 years, 49 weeks, 3 days, 22 hours, 11 minutes, 48 seconds.
• To count from 1 to 12,987,209,508 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 12987209508 cubic inches would be around 195.9 feet tall.

Recreational maths with 12987209508

• 12987209508 backwards is 80590278921
• The number of decimal digits it has is: 11
• The sum of 12987209508's digits is 51
• More coming soon!