28256400

Names of 28256400

• Cardinal: 28256400 can be written as Twenty-eight million, two hundred fifty-six thousand, four hundred.

Scientific notation

• Scientific notation: 2.82564 × 10⁷

Factors of 28256400

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 224

Divisors of 28256400

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 36 40 45 47 48 50 60 72 75 80 90 94 100 120 141 144 150 167 180 188 200 225 235 240 282 300 334 360 376 400 423 450 470 501 564 600 668 705 720 752 835 846 900 940 1002 1128 1175 1200 1336 1410 1503 1670 1692 1800 1880 2004 2115 2256 2350 2505 2672 2820 3006 3340 3384 3525 3600 3760 4008 4175 4230 4700 5010 5640 6012 6680 6768 7050 7515 7849 8016 8350 8460 9400 10020 10575 11280 12024 12525 13360 14100 15030 15698 16700 16920 18800 20040 21150 23547 24048 25050 28200 30060 31396 33400 33840 37575 39245 40080 42300 47094 50100 56400 60120 62792 66800 70641 75150 78490 84600 94188 100200 117735 120240 125584 141282 150300 156980 169200 188376 196225 200400 235470 282564 300600 313960 353205 376752 392450 470940 565128 588675 601200 627920 706410 784900 941880 1130256 1177350 1412820 1569800 1766025 1883760 2354700 2825640 3139600 3532050 4709400 5651280 7064100 9418800 14128200 28256400
• Sum of all divisors σ(n): 100743552
• Sum of proper divisors (its aliquot sum) s(n): 72487152
• 28256400 is an abundant number, because the sum of its proper divisors (72487152) is greater than itself. Its abundance is 44230752

Bases of 28256400

• Binary: 1101011110010100010010000₂
• Hexadecimal: 0x1AF2890
• Base-36: GTMS0

Squares and roots of 28256400

• 28256400 squared (28256400²) is 798424140960000
• 28256400 cubed (28256400³) is 22560591896622144000000
• The square root of 28256400 is 5315.6749336279
• The cube root of 28256400 is 304.5829649281

Scales and comparisons

• 28,256,400 seconds is equal to 46 weeks, 5 days, 1 hour.
• To count from 1 to 28,256,400 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 28256400 cubic inches would be around 25.4 feet tall.

Recreational maths with 28256400

• 28256400 backwards is 00465282
• The number of decimal digits it has is: 8
• The sum of 28256400's digits is 27
• More coming soon!