28928240

Names of 28928240

• Cardinal: 28928240 can be written as Twenty-eight million, nine hundred twenty-eight thousand, two hundred forty.

Scientific notation

• Scientific notation: 2.892824 × 10⁷

Factors of 28928240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 552

Divisors of 28928240

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 40 44 55 71 80 88 110 142 176 220 284 355 440 463 568 710 781 880 926 1136 1420 1562 1852 2315 2840 3124 3704 3905 4630 5093 5680 6248 7408 7810 9260 10186 12496 15620 18520 20372 25465 31240 32873 37040 40744 50930 62480 65746 81488 101860 131492 164365 203720 262984 328730 361603 407440 525968 657460 723206 1314920 1446412 1808015 2629840 2892824 3616030 5785648 7232060 14464120 28928240
• Sum of all divisors σ(n): 74566656
• Sum of proper divisors (its aliquot sum) s(n): 45638416
• 28928240 is an abundant number, because the sum of its proper divisors (45638416) is greater than itself. Its abundance is 16710176

Bases of 28928240

• Binary: 1101110010110100011110000₂
• Hexadecimal: 0x1B968F0
• Base-36: H8168

Squares and roots of 28928240

• 28928240 squared (28928240²) is 836843069497600
• 28928240 cubed (28928240³) is 24208397156763252224000
• The square root of 28928240 is 5378.4979315791
• The cube root of 28928240 is 306.9780600915

Scales and comparisons

• 28,928,240 seconds is equal to 47 weeks, 5 days, 19 hours, 37 minutes, 20 seconds.
• To count from 1 to 28,928,240 would take you about nineteen 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 28928240 cubic inches would be around 25.6 feet tall.

Recreational maths with 28928240

• 28928240 backwards is 04282982
• The number of decimal digits it has is: 8
• The sum of 28928240's digits is 35
• More coming soon!