28107420

Names of 28107420

• Cardinal: 28107420 can be written as Twenty-eight million, one hundred seven thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.810742 × 10⁷

Factors of 28107420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1209

Divisors of 28107420

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 30 33 37 44 55 60 66 74 110 111 132 148 165 185 220 222 330 370 407 444 555 660 740 814 1110 1151 1221 1628 2035 2220 2302 2442 3453 4070 4604 4884 5755 6105 6906 8140 11510 12210 12661 13812 17265 23020 24420 25322 34530 37983 42587 50644 63305 69060 75966 85174 126610 127761 151932 170348 189915 212935 253220 255522 379830 425870 468457 511044 638805 759660 851740 936914 1277610 1405371 1873828 2342285 2555220 2810742 4684570 5621484 7026855 9369140 14053710 28107420
• Sum of all divisors σ(n): 88252416
• Sum of proper divisors (its aliquot sum) s(n): 60144996
• 28107420 is an abundant number, because the sum of its proper divisors (60144996) is greater than itself. Its abundance is 32037576

Bases of 28107420

• Binary: 1101011001110001010011100₂
• Hexadecimal: 0x1ACE29C
• Base-36: GQFTO

Squares and roots of 28107420

• 28107420 squared (28107420²) is 790027059056400
• 28107420 cubed (28107420³) is 22205622360263038488000
• The square root of 28107420 is 5301.6431415177
• The cube root of 28107420 is 304.0467235433

Scales and comparisons

• 28,107,420 seconds is equal to 46 weeks, 3 days, 7 hours, 37 minutes.
• To count from 1 to 28,107,420 would take you about seventeen 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 28107420 cubic inches would be around 25.3 feet tall.

Recreational maths with 28107420

• 28107420 backwards is 02470182
• The number of decimal digits it has is: 8
• The sum of 28107420's digits is 24
• More coming soon!