12731321709

Names of 12731321709

• Cardinal: 12731321709 can be written as Twelve billion, seven hundred thirty-one million, three hundred twenty-one thousand, seven hundred nine.

Scientific notation

• Scientific notation: 1.2731321709 × 10¹⁰

Factors of 12731321709

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 365

Divisors of 12731321709

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 17 51 67 79 153 199 201 237 597 603 711 1139 1343 1791 3383 3417 4029 5293 6241 10149 10251 12087 13333 15721 15879 18723 30447 39999 47163 47637 56169 89981 106097 119997 141489 226661 267257 269943 318291 418147 679983 801771 809829 954873 1053307 1241959 1254441 2039949 2405313 3159921 3725877 3763323 7108499 9479763 11177631 17906219 21113303 21325497 53718657 63339909 63976491 83211253 161155971 190019727 249633759 748901277 1414591301 4243773903 12731321709
• Sum of all divisors σ(n): 20115950400
• Sum of proper divisors (its aliquot sum) s(n): 7384628691
• 12731321709 is a deficient number, because the sum of its proper divisors (7384628691) is less than itself. Its deficiency is 5346693018

Bases of 12731321709

• Binary: 1011110110110110001000110101101101₂
• Hexadecimal: 0x2F6D88D6D
• Base-36: 5UJWEP9

Squares and roots of 12731321709

• 12731321709 squared (12731321709²) is 162086552458054680681
• 12731321709 cubed (12731321709³) is 2063576044046198868063078203829
• The square root of 12731321709 is 112833.1587300469
• The cube root of 12731321709 is 2335.0230077499

Scales and comparisons

• 12,731,321,709 seconds is equal to 404 years, 42 weeks, 3 days, 6 hours, 15 minutes, 9 seconds.
• To count from 1 to 12,731,321,709 would take you about eight hundred nine 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 12731321709 cubic inches would be around 194.6 feet tall.

Recreational maths with 12731321709

• 12731321709 backwards is 90712313721
• The number of decimal digits it has is: 11
• The sum of 12731321709's digits is 36
• More coming soon!