1309389705

Names of 1309389705

• Cardinal: 1309389705 can be written as One billion, three hundred nine million, three hundred eighty-nine thousand, seven hundred five.

Scientific notation

• Scientific notation: 1.309389705 × 10⁹

Factors of 1309389705

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 233

Divisors of 1309389705

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 9 13 15 27 39 45 61 65 81 117 135 151 183 195 243 305 351 405 453 549 585 729 755 793 915 1053 1215 1359 1647 1755 1963 2187 2265 2379 2745 3159 3645 3965 4077 4941 5265 5889 6795 7137 8235 9211 9477 9815 10935 11895 12231 14823 15795 17667 20385 21411 24705 27633 28431 29445 35685 36693 44469 46055 47385 53001 61155 64233 74115 82899 88335 107055 110079 119743 133407 138165 142155 159003 183465 192699 222345 248697 265005 321165 330237 359229 414495 477009 550395 578097 598715 667035 746091 795015 963495 1077687 1243485 1431027 1651185 1734291 1796145 2238273 2385045 2890485 3233061 3730455 4293081 5388435 6714819 7155135 8671455 9699183 11191365 16165305 20144457 21465405 29097549 33574095 48495915 87292647 100722285 145487745 261877941 436463235 1309389705
• Sum of all divisors σ(n): 2596500480
• Sum of proper divisors (its aliquot sum) s(n): 1287110775
• 1309389705 is a deficient number, because the sum of its proper divisors (1287110775) is less than itself. Its deficiency is 22278930

Bases of 1309389705

• Binary: 1001110000010111011001110001001₂
• Hexadecimal: 0x4E0BB389
• Base-36: LNKRK9

Squares and roots of 1309389705

• 1309389705 squared (1309389705²) is 1714501399559987025
• 1309389705 cubed (1309389705³) is 2244950481791938540468577625
• The square root of 1309389705 is 36185.4902550733
• The cube root of 1309389705 is 1094.0142376329

Scales and comparisons

• 1,309,389,705 seconds is equal to 41 years, 32 weeks, 6 days, 23 hours, 21 minutes, 45 seconds.
• To count from 1 to 1,309,389,705 would take you about eighty-three 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 1309389705 cubic inches would be around 91.2 feet tall.

Recreational maths with 1309389705

• 1309389705 backwards is 5079839031
• 1309389705 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1309389705's digits is 45
• More coming soon!