28221648

Names of 28221648

• Cardinal: 28221648 can be written as Twenty-eight million, two hundred twenty-one thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 2.8221648 × 10⁷

Factors of 28221648

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 96

Divisors of 28221648

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 6 7 8 12 13 14 16 21 24 26 28 39 42 48 49 52 56 71 78 84 91 98 104 112 142 147 156 168 169 182 196 208 213 273 284 294 312 336 338 364 392 426 497 507 546 568 588 624 637 676 728 784 852 923 994 1014 1092 1136 1176 1183 1274 1352 1456 1491 1704 1846 1911 1988 2028 2184 2352 2366 2548 2704 2769 2982 3408 3479 3549 3692 3822 3976 4056 4368 4732 5096 5538 5964 6461 6958 7098 7384 7644 7952 8112 8281 9464 10192 10437 11076 11928 11999 12922 13916 14196 14768 15288 16562 18928 19383 20874 22152 23856 23998 24843 25844 27832 28392 30576 33124 35997 38766 41748 44304 45227 47996 49686 51688 55664 56784 66248 71994 77532 83496 83993 90454 95992 99372 103376 132496 135681 143988 155064 166992 167986 180908 191984 198744 251979 271362 287976 310128 335972 361816 397488 503958 542724 575952 587951 671944 723632 1007916 1085448 1175902 1343888 1763853 2015832 2170896 2351804 3527706 4031664 4703608 7055412 9407216 14110824 28221648
• Sum of all divisors σ(n): 93127968
• Sum of proper divisors (its aliquot sum) s(n): 64906320
• 28221648 is an abundant number, because the sum of its proper divisors (64906320) is greater than itself. Its abundance is 36684672

Bases of 28221648

• Binary: 1101011101010000011010000₂
• Hexadecimal: 0x1AEA0D0
• Base-36: GSVYO

Squares and roots of 28221648

• 28221648 squared (28221648²) is 796461415835904
• 28221648 cubed (28221648³) is 22477453723302508449792
• The square root of 28221648 is 5312.4051050349
• The cube root of 28221648 is 304.4580468029

Scales and comparisons

• 28,221,648 seconds is equal to 46 weeks, 4 days, 15 hours, 20 minutes, 48 seconds.
• To count from 1 to 28,221,648 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 28221648 cubic inches would be around 25.4 feet tall.

Recreational maths with 28221648

• 28221648 backwards is 84612282
• The number of decimal digits it has is: 8
• The sum of 28221648's digits is 33
• More coming soon!