20911968

Names of 20911968

• Cardinal: 20911968 can be written as Twenty million, nine hundred eleven thousand, nine hundred sixty-eight.

Scientific notation

• Scientific notation: 2.0911968 × 10⁷

Factors of 20911968

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 87

Divisors of 20911968

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 6 7 8 9 11 12 14 16 18 21 22 23 24 28 32 33 36 41 42 44 46 48 56 63 66 69 72 77 82 84 88 92 96 99 112 123 126 132 138 144 154 161 164 168 176 184 198 207 224 231 246 252 253 264 276 287 288 308 322 328 336 352 368 369 396 414 451 462 483 492 504 506 528 552 574 616 644 656 672 693 736 738 759 792 828 861 902 924 943 966 984 1008 1012 1056 1104 1148 1232 1288 1312 1353 1386 1449 1476 1518 1584 1656 1722 1771 1804 1848 1886 1932 1968 2016 2024 2208 2277 2296 2464 2576 2583 2706 2772 2829 2898 2952 3036 3157 3168 3312 3444 3542 3608 3696 3772 3864 3936 4048 4059 4554 4592 5152 5166 5313 5412 5544 5658 5796 5904 6072 6314 6601 6624 6888 7084 7216 7392 7544 7728 8096 8118 8487 9108 9184 9471 10332 10373 10626 10824 11088 11316 11592 11808 12144 12628 13202 13776 14168 14432 15088 15456 15939 16236 16974 18216 18942 19803 20664 20746 21252 21648 22176 22632 23184 24288 25256 26404 27552 28336 28413 30176 31119 31878 32472 33948 36432 37884 39606 41328 41492 42504 43296 45264 46368 50512 52808 56672 56826 59409 62238 63756 64944 67896 72611 72864 75768 79212 82656 82984 85008 90528 93357 101024 105616 113652 118818 124476 127512 129888 135792 145222 151536 158424 165968 170016 186714 211232 217833 227304 237636 248952 255024 271584 290444 303072 316848 331936 373428 435666 454608 475272 497904 510048 580888 633696 653499 746856 871332 909216 950544 995808 1161776 1306998 1493712 1742664 1901088 2323552 2613996 2987424 3485328 5227992 6970656 10455984 20911968
• Sum of all divisors σ(n): 79252992
• Sum of proper divisors (its aliquot sum) s(n): 58341024
• 20911968 is an abundant number, because the sum of its proper divisors (58341024) is greater than itself. Its abundance is 37429056

Bases of 20911968

• Binary: 1001111110001011101100000₂
• Hexadecimal: 0x13F1760
• Base-36: CG7S0

Squares and roots of 20911968

• 20911968 squared (20911968²) is 437310405633024
• 20911968 cubed (20911968³) is 9145021208664817631232
• The square root of 20911968 is 4572.9605290227
• The cube root of 20911968 is 275.5063640173

Scales and comparisons

• 20,911,968 seconds is equal to 34 weeks, 4 days, 52 minutes, 48 seconds.
• To count from 1 to 20,911,968 would take you about fifty-one 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 20911968 cubic inches would be around 23 feet tall.

Recreational maths with 20911968

• 20911968 backwards is 86911902
• 20911968 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 20911968's digits is 36
• More coming soon!