28380629890

Names of 28380629890

• Cardinal: 28380629890 can be written as Twenty-eight billion, three hundred eighty million, six hundred twenty-nine thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 2.838062989 × 10¹⁰

Factors of 28380629890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 4823

Divisors of 28380629890

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 5 10 23 29 31 46 58 62 115 145 155 230 290 310 667 713 841 899 1334 1426 1682 1798 3335 3565 4205 4495 4733 6670 7130 8410 8990 9466 19343 20677 23665 26071 38686 41354 47330 52142 96715 103385 108859 130355 137257 146723 193430 206770 217718 260710 274514 293446 544295 599633 686285 733615 1088590 1199266 1372570 1467230 2998165 3156911 3374629 3980453 4254967 5996330 6313822 6749258 7960906 8509934 15784555 16873145 19902265 21274835 31569110 33746290 39804530 42549670 91550419 97864241 123394043 183100838 195728482 246788086 457752095 489321205 616970215 915504190 978642410 1233940430 2838062989 5676125978 14190314945 28380629890
• Sum of all divisors σ(n): 57000692736
• Sum of proper divisors (its aliquot sum) s(n): 28620062846
• 28380629890 is an abundant number, because the sum of its proper divisors (28620062846) is greater than itself. Its abundance is 239432956

Bases of 28380629890

• Binary: 11010011011100111100000101110000010₂
• Hexadecimal: 0x69B9E0B82
• Base-36: D1D3E6A

Squares and roots of 28380629890

• 28380629890 squared (28380629890²) is 805460152953161412100
• 28380629890 cubed (28380629890³) is 22859466492106464542239867669000
• The square root of 28380629890 is 168465.5154326843
• The cube root of 28380629890 is 3050.2868095423

Scales and comparisons

• 28,380,629,890 seconds is equal to 902 years, 21 weeks, 4 days, 12 hours, 18 minutes, 10 seconds.
• To count from 1 to 28,380,629,890 would take you about one thousand, eight hundred four 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 28380629890 cubic inches would be around 254.2 feet tall.

Recreational maths with 28380629890

• 28380629890 backwards is 09892608382
• The number of decimal digits it has is: 11
• The sum of 28380629890's digits is 55
• More coming soon!