28398746142

Names of 28398746142

• Cardinal: 28398746142 can be written as Twenty-eight billion, three hundred ninety-eight million, seven hundred forty-six thousand, one hundred forty-two.

Scientific notation

• Scientific notation: 2.8398746142 × 10¹⁰

Factors of 28398746142

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 10498

Divisors of 28398746142

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 6 9 13 18 26 39 78 117 169 234 338 507 983 1014 1521 1966 2949 3042 5898 8847 9497 12779 17694 18994 25558 28491 38337 56982 76674 85473 115011 123461 166127 170946 230022 246922 332254 370383 498381 740766 996762 1111149 1495143 1604993 2222298 2990286 3209986 4814979 9335551 9629958 14444937 18671102 28006653 28889874 56013306 84019959 121362163 168039918 242724326 364086489 728172978 1092259467 1577708119 2184518934 3155416238 4733124357 9466248714 14199373071 28398746142
• Sum of all divisors σ(n): 66702630384
• Sum of proper divisors (its aliquot sum) s(n): 38303884242
• 28398746142 is an abundant number, because the sum of its proper divisors (38303884242) is greater than itself. Its abundance is 9905138100

Bases of 28398746142

• Binary: 11010011100101100100111101000011110₂
• Hexadecimal: 0x69CB27A1E
• Base-36: D1NVORI

Squares and roots of 28398746142

• 28398746142 squared (28398746142²) is 806488782437759884164
• 28398746142 cubed (28398746142³) is 22903270198820610865524761895288
• The square root of 28398746142 is 168519.2752832743
• The cube root of 28398746142 is 3050.9357029469

Scales and comparisons

• 28,398,746,142 seconds is equal to 902 years, 51 weeks, 4 days, 4 hours, 35 minutes, 42 seconds.
• To count from 1 to 28,398,746,142 would take you about one thousand, eight hundred five 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 28398746142 cubic inches would be around 254.2 feet tall.

Recreational maths with 28398746142

• 28398746142 backwards is 24164789382
• The number of decimal digits it has is: 11
• The sum of 28398746142's digits is 54
• More coming soon!