28572080

Names of 28572080

• Cardinal: 28572080 can be written as Twenty-eight million, five hundred seventy-two thousand and eighty.

Scientific notation

• Scientific notation: 2.857208 × 10⁷

Factors of 28572080

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 360

Divisors of 28572080

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 16 20 31 40 41 62 80 82 124 155 164 205 248 281 310 328 410 496 562 620 656 820 1124 1240 1271 1405 1640 2248 2480 2542 2810 3280 4496 5084 5620 6355 8711 10168 11240 11521 12710 17422 20336 22480 23042 25420 34844 43555 46084 50840 57605 69688 87110 92168 101680 115210 139376 174220 184336 230420 348440 357151 460840 696880 714302 921680 1428604 1785755 2857208 3571510 5714416 7143020 14286040 28572080
• Sum of all divisors σ(n): 70495488
• Sum of proper divisors (its aliquot sum) s(n): 41923408
• 28572080 is an abundant number, because the sum of its proper divisors (41923408) is greater than itself. Its abundance is 13351328

Bases of 28572080

• Binary: 1101100111111100110110000₂
• Hexadecimal: 0x1B3F9B0
• Base-36: H0ECW

Squares and roots of 28572080

• 28572080 squared (28572080²) is 816363755526400
• 28572080 cubed (28572080³) is 23325210532000742912000
• The square root of 28572080 is 5345.2857734643
• The cube root of 28572080 is 305.7130321167

Scales and comparisons

• 28,572,080 seconds is equal to 47 weeks, 1 day, 16 hours, 41 minutes, 20 seconds.
• To count from 1 to 28,572,080 would take you about eighteen weeks!

  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 28572080 cubic inches would be around 25.5 feet tall.

Recreational maths with 28572080

• 28572080 backwards is 08027582
• The number of decimal digits it has is: 8
• The sum of 28572080's digits is 32
• More coming soon!