28378005090

Names of 28378005090

• Cardinal: 28378005090 can be written as Twenty-eight billion, three hundred seventy-eight million, five thousand and ninety.

Scientific notation

• Scientific notation: 2.837800509 × 10¹⁰

Factors of 28378005090

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 45971

Divisors of 28378005090

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 10 15 30 139 149 278 298 417 447 695 745 834 894 1390 1490 2085 2235 4170 4470 20711 41422 45673 62133 91346 103555 124266 137019 207110 228365 274038 310665 456730 621330 685095 1370190 6348547 6805277 12697094 13610554 19045641 20415831 31742735 34026385 38091282 40831662 63485470 68052770 95228205 102079155 190456410 204158310 945933503 1891867006 2837800509 4729667515 5675601018 9459335030 14189002545 28378005090
• Sum of all divisors σ(n): 69059088000
• Sum of proper divisors (its aliquot sum) s(n): 40681082910
• 28378005090 is an abundant number, because the sum of its proper divisors (40681082910) is greater than itself. Its abundance is 12303077820

Bases of 28378005090

• Binary: 11010011011011101011111111001100010₂
• Hexadecimal: 0x69B75FE62
• Base-36: D1BJ4V6

Squares and roots of 28378005090

• 28378005090 squared (28378005090²) is 805311172888065908100
• 28378005090 cubed (28378005090³) is 22853124563251404340317272229000
• The square root of 28378005090 is 168457.7249341805
• The cube root of 28378005090 is 3050.1927707597

Scales and comparisons

• 28,378,005,090 seconds is equal to 902 years, 17 weeks, 2 days, 3 hours, 11 minutes, 30 seconds.
• To count from 1 to 28,378,005,090 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 28378005090 cubic inches would be around 254.2 feet tall.

Recreational maths with 28378005090

• 28378005090 backwards is 09050087382
• The number of decimal digits it has is: 11
• The sum of 28378005090's digits is 42
• More coming soon!