12913332390

Names of 12913332390

• Cardinal: 12913332390 can be written as Twelve billion, nine hundred thirteen million, three hundred thirty-two thousand, three hundred ninety.

Scientific notation

• Scientific notation: 1.291333239 × 10¹⁰

Factors of 12913332390

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 6832468

Divisors of 12913332390

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 45 54 63 70 90 105 126 135 189 210 270 315 378 630 945 1890 6832451 13664902 20497353 34162255 40994706 47827157 61492059 68324510 95654314 102486765 122984118 143481471 184476177 204973530 239135785 286962942 307460295 368952354 430444413 478271570 614920590 717407355 860888826 922380885 1291333239 1434814710 1844761770 2152222065 2582666478 4304444130 6456666195 12913332390
• Sum of all divisors σ(n): 39354923520
• Sum of proper divisors (its aliquot sum) s(n): 26441591130
• 12913332390 is an abundant number, because the sum of its proper divisors (26441591130) is greater than itself. Its abundance is 13528258740

Bases of 12913332390

• Binary: 1100000001101100011101000010100110₂
• Hexadecimal: 0x301B1D0A6
• Base-36: 5XK9J1I

Squares and roots of 12913332390

• 12913332390 squared (12913332390²) is 166754153414623112100
• 12913332390 cubed (12913332390³) is 2153351810456081733123530919000
• The square root of 12913332390 is 113636.8443331651
• The cube root of 12913332390 is 2346.0977876705

Scales and comparisons

• 12,913,332,390 seconds is equal to 410 years, 31 weeks, 2 days, 20 hours, 46 minutes, 30 seconds.
• To count from 1 to 12,913,332,390 would take you about eight hundred twenty-one 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 12913332390 cubic inches would be around 195.5 feet tall.

Recreational maths with 12913332390

• 12913332390 backwards is 09323331921
• The number of decimal digits it has is: 11
• The sum of 12913332390's digits is 36
• More coming soon!