12799638387

Names of 12799638387

• Cardinal: 12799638387 can be written as Twelve billion, seven hundred ninety-nine million, six hundred thirty-eight thousand, three hundred eighty-seven.

Scientific notation

• Scientific notation: 1.2799638387 × 10¹⁰

Factors of 12799638387

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 117

Divisors of 12799638387

• Number of divisors d(n): 66
• Complete list of divisors:
  1 3 9 27 43 71 81 129 213 243 387 639 729 1161 1917 2187 3053 3483 5041 5751 6561 9159 10449 15123 17253 19683 27477 31347 45369 51759 59049 82431 94041 136107 155277 216763 247293 282123 408321 465831 650289 741879 846369 1224963 1397493 1950867 2225637 2539107 3674889 4192479 5852601 6676911 11024667 17557803 20030733 33074001 52673409 60092199 99222003 158020227 180276597 297666009 474060681 1422182043 4266546129 12799638387
• Sum of all divisors σ(n): 19926444956
• Sum of proper divisors (its aliquot sum) s(n): 7126806569
• 12799638387 is a deficient number, because the sum of its proper divisors (7126806569) is less than itself. Its deficiency is 5672831818

Bases of 12799638387

• Binary: 1011111010111010101111101101110011₂
• Hexadecimal: 0x2FAEAFB73
• Base-36: 5VOKO6R

Squares and roots of 12799638387

• 12799638387 squared (12799638387²) is 163830742837963961769
• 12799638387 cubed (12799638387³) is 2096974264999528845981092826603
• The square root of 12799638387 is 113135.4868597825
• The cube root of 12799638387 is 2339.1921619707

Scales and comparisons

• 12,799,638,387 seconds is equal to 406 years, 51 weeks, 2 days, 23 hours, 6 minutes, 27 seconds.
• To count from 1 to 12,799,638,387 would take you about eight hundred thirteen 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 12799638387 cubic inches would be around 194.9 feet tall.

Recreational maths with 12799638387

• 12799638387 backwards is 78383699721
• The number of decimal digits it has is: 11
• The sum of 12799638387's digits is 63
• More coming soon!