28668960

Names of 28668960

• Cardinal: 28668960 can be written as Twenty-eight million, six hundred sixty-eight thousand, nine hundred sixty.

Scientific notation

• Scientific notation: 2.866896 × 10⁷

Factors of 28668960

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 516

Divisors of 28668960

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 43 45 48 60 72 80 86 90 96 120 129 144 160 172 180 215 240 258 288 344 360 387 430 463 480 516 645 688 720 774 860 926 1032 1290 1376 1389 1440 1548 1720 1852 1935 2064 2315 2580 2778 3096 3440 3704 3870 4128 4167 4630 5160 5556 6192 6880 6945 7408 7740 8334 9260 10320 11112 12384 13890 14816 15480 16668 18520 19909 20640 20835 22224 27780 30960 33336 37040 39818 41670 44448 55560 59727 61920 66672 74080 79636 83340 99545 111120 119454 133344 159272 166680 179181 199090 222240 238908 298635 318544 333360 358362 398180 477816 597270 637088 666720 716724 796360 895905 955632 1194540 1433448 1592720 1791810 1911264 2389080 2866896 3185440 3583620 4778160 5733792 7167240 9556320 14334480 28668960
• Sum of all divisors σ(n): 100324224
• Sum of proper divisors (its aliquot sum) s(n): 71655264
• 28668960 is an abundant number, because the sum of its proper divisors (71655264) is greater than itself. Its abundance is 42986304

Bases of 28668960

• Binary: 1101101010111010000100000₂
• Hexadecimal: 0x1B57420
• Base-36: H2H40

Squares and roots of 28668960

• 28668960 squared (28668960²) is 821909267481600
• 28668960 cubed (28668960³) is 23563283913059291136000
• The square root of 28668960 is 5354.3402954985
• The cube root of 28668960 is 306.0581716909

Scales and comparisons

• 28,668,960 seconds is equal to 47 weeks, 2 days, 19 hours, 36 minutes.
• To count from 1 to 28,668,960 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 28668960 cubic inches would be around 25.5 feet tall.

Recreational maths with 28668960

• 28668960 backwards is 06986682
• 28668960 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28668960's digits is 45
• More coming soon!