28005108240

Names of 28005108240

• Cardinal: 28005108240 can be written as Twenty-eight billion, five million, one hundred eight thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.800510824 × 10¹⁰

Factors of 28005108240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 716050

Divisors of 28005108240

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 163 240 326 489 652 815 978 1304 1630 1956 2445 2608 3260 3912 4890 6520 7824 9780 13040 19560 39120 715877 1431754 2147631 2863508 3579385 4295262 5727016 7158770 8590524 10738155 11454032 14317540 17181048 21476310 28635080 34362096 42952620 57270160 85905240 116687951 171810480 233375902 350063853 466751804 583439755 700127706 933503608 1166879510 1400255412 1750319265 1867007216 2333759020 2800510824 3500638530 4667518040 5601021648 7001277060 9335036080 14002554120 28005108240
• Sum of all divisors σ(n): 87348570048
• Sum of proper divisors (its aliquot sum) s(n): 59343461808
• 28005108240 is an abundant number, because the sum of its proper divisors (59343461808) is greater than itself. Its abundance is 31338353568

Bases of 28005108240

• Binary: 11010000101001111000000101000010000₂
• Hexadecimal: 0x6853C0A10
• Base-36: CV5INTC

Squares and roots of 28005108240

• 28005108240 squared (28005108240²) is 784286087534115897600
• 28005108240 cubed (28005108240³) is 21964016772519030404992756224000
• The square root of 28005108240 is 167347.2683971865
• The cube root of 28005108240 is 3036.7736228525

Scales and comparisons

• 28,005,108,240 seconds is equal to 890 years, 24 weeks, 5 days, 4 hours, 44 minutes.
• To count from 1 to 28,005,108,240 would take you about one thousand, seven hundred eighty 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 28005108240 cubic inches would be around 253.1 feet tall.

Recreational maths with 28005108240

• 28005108240 backwards is 04280150082
• 28005108240 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28005108240's digits is 30
• More coming soon!