64420085790

Names of 64420085790

• Cardinal: 64420085790 can be written as Sixty-four billion, four hundred twenty million, eighty-five thousand, seven hundred ninety.

Scientific notation

• Scientific notation: 6.442008579 × 10¹⁰

Factors of 64420085790

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 131251

Divisors of 64420085790

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 5 6 9 10 15 18 30 43 45 86 90 127 129 215 254 258 381 387 430 635 645 762 774 1143 1270 1290 1905 1935 2286 3810 3870 5461 5715 10922 11430 16383 27305 32766 49149 54610 81915 98298 131071 163830 245745 262142 393213 491490 655355 786426 1179639 1310710 1966065 2359278 3932130 5636053 5898195 11272106 11796390 16646017 16908159 28180265 33292034 33816318 49938051 50724477 56360530 83230085 84540795 99876102 101448954 149814153 166460170 169081590 249690255 253622385 299628306 499380510 507244770 715778731 749070765 1431557462 1498141530 2147336193 3578893655 4294672386 6442008579 7157787310 10736680965 12884017158 21473361930 32210042895 64420085790
• Sum of all divisors σ(n): 172738215936
• Sum of proper divisors (its aliquot sum) s(n): 108318130146
• 64420085790 is an abundant number, because the sum of its proper divisors (108318130146) is greater than itself. Its abundance is 43898044356

Bases of 64420085790

• Binary: 111011111111101111001000000000011110₂
• Hexadecimal: 0xEFFBC801E
• Base-36: TLE20BI

Squares and roots of 64420085790

• 64420085790 squared (64420085790²) is 4149947453190959924100
• 64420085790 cubed (64420085790³) is 267339970958553647562973888539000
• The square root of 64420085790 is 253811.1222740249
• The cube root of 64420085790 is 4008.7327083685

Scales and comparisons

• 64,420,085,790 seconds is equal to 2,048 years, 18 weeks, 4 days, 20 hours, 16 minutes, 30 seconds.
• To count from 1 to 64,420,085,790 would take you about four thousand and ninety-six 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 64420085790 cubic inches would be around 334.1 feet tall.

Recreational maths with 64420085790

• 64420085790 backwards is 09758002446
• 64420085790 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 64420085790's digits is 45
• More coming soon!