28445040

Names of 28445040

• Cardinal: 28445040 can be written as Twenty-eight million, four hundred forty-five thousand and forty.

Scientific notation

• Scientific notation: 2.844504 × 10⁷

Factors of 28445040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1036

Divisors of 28445040

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 36 39 40 45 48 52 54 60 65 72 78 80 90 104 108 117 120 130 135 144 156 180 195 208 216 234 240 260 270 312 351 360 390 432 468 520 540 585 624 702 720 780 936 1013 1040 1080 1170 1404 1560 1755 1872 2026 2160 2340 2808 3039 3120 3510 4052 4680 5065 5616 6078 7020 8104 9117 9360 10130 12156 13169 14040 15195 16208 18234 20260 24312 26338 27351 28080 30390 36468 39507 40520 45585 48624 52676 54702 60780 65845 72936 79014 81040 91170 105352 109404 118521 121560 131690 136755 145872 158028 182340 197535 210704 218808 237042 243120 263380 273510 316056 355563 364680 395070 437616 474084 526760 547020 592605 632112 711126 729360 790140 948168 1053520 1094040 1185210 1422252 1580280 1777815 1896336 2188080 2370420 2844504 3160560 3555630 4740840 5689008 7111260 9481680 14222520 28445040
• Sum of all divisors σ(n): 105618240
• Sum of proper divisors (its aliquot sum) s(n): 77173200
• 28445040 is an abundant number, because the sum of its proper divisors (77173200) is greater than itself. Its abundance is 48728160

Bases of 28445040

• Binary: 1101100100000100101110000₂
• Hexadecimal: 0x1B20970
• Base-36: GXOC0

Squares and roots of 28445040

• 28445040 squared (28445040²) is 809120300601600
• 28445040 cubed (28445040³) is 23015459315424536064000
• The square root of 28445040 is 5333.3891663745
• The cube root of 28445040 is 305.2592617731

Scales and comparisons

• 28,445,040 seconds is equal to 47 weeks, 5 hours, 24 minutes.
• To count from 1 to 28,445,040 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 28445040 cubic inches would be around 25.4 feet tall.

Recreational maths with 28445040

• 28445040 backwards is 04054482
• 28445040 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28445040's digits is 27
• More coming soon!