28420392

Names of 28420392

• Cardinal: 28420392 can be written as Twenty-eight million, four hundred twenty thousand, three hundred ninety-two.

Scientific notation

• Scientific notation: 2.8420392 × 10⁷

Factors of 28420392

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 36

Divisors of 28420392

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 6 7 8 11 12 13 14 21 22 24 26 28 33 39 42 44 49 52 56 66 77 78 84 88 91 98 104 132 143 147 154 156 168 169 182 196 231 264 273 286 294 308 312 338 364 392 429 462 507 539 546 572 588 616 637 676 728 858 924 1001 1014 1078 1092 1144 1176 1183 1274 1352 1617 1716 1848 1859 1911 2002 2028 2156 2184 2197 2366 2548 3003 3234 3432 3549 3718 3822 4004 4056 4312 4394 4732 5096 5577 6006 6468 6591 7007 7098 7436 7644 8008 8281 8788 9464 11154 12012 12936 13013 13182 14014 14196 14872 15288 15379 16562 17576 21021 22308 24024 24167 24843 26026 26364 28028 28392 30758 33124 39039 42042 44616 46137 48334 49686 52052 52728 56056 61516 66248 72501 78078 84084 91091 92274 96668 99372 104104 107653 123032 145002 156156 168168 169169 182182 184548 193336 198744 215306 273273 290004 312312 322959 338338 364364 369096 430612 507507 546546 580008 645918 676676 728728 861224 1015014 1093092 1184183 1291836 1353352 2030028 2186184 2368366 2583672 3552549 4060056 4736732 7105098 9473464 14210196 28420392
• Sum of all divisors σ(n): 97675200
• Sum of proper divisors (its aliquot sum) s(n): 69254808
• 28420392 is an abundant number, because the sum of its proper divisors (69254808) is greater than itself. Its abundance is 40834416

Bases of 28420392

• Binary: 1101100011010100100101000₂
• Hexadecimal: 0x1B1A928
• Base-36: GX5BC

Squares and roots of 28420392

• 28420392 squared (28420392²) is 807718681433664
• 28420392 cubed (28420392³) is 22955681552067852876288
• The square root of 28420392 is 5331.0779397791
• The cube root of 28420392 is 305.1710659101

Scales and comparisons

• 28,420,392 seconds is equal to 46 weeks, 6 days, 22 hours, 33 minutes, 12 seconds.
• To count from 1 to 28,420,392 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 28420392 cubic inches would be around 25.4 feet tall.

Recreational maths with 28420392

• 28420392 backwards is 29302482
• The number of decimal digits it has is: 8
• The sum of 28420392's digits is 30
• More coming soon!