28163408

Names of 28163408

• Cardinal: 28163408 can be written as Twenty-eight million, one hundred sixty-three thousand, four hundred eight.

Scientific notation

• Scientific notation: 2.8163408 × 10⁷

Factors of 28163408

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 74

Divisors of 28163408

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 4 7 8 13 14 16 23 26 28 29 46 52 56 58 91 92 104 112 116 161 182 184 203 208 232 299 322 364 368 377 406 464 598 644 667 728 754 812 841 1196 1288 1334 1456 1508 1624 1682 2093 2392 2576 2639 2668 3016 3248 3364 4186 4669 4784 5278 5336 5887 6032 6728 8372 8671 9338 10556 10672 10933 11774 13456 16744 17342 18676 19343 21112 21866 23548 33488 34684 37352 38686 42224 43732 47096 60697 69368 74704 76531 77372 87464 94192 121394 135401 138736 153062 154744 174928 242788 251459 270802 306124 309488 485576 502918 541604 612248 971152 1005836 1083208 1224496 1760213 2011672 2166416 3520426 4023344 7040852 14081704 28163408
• Sum of all divisors σ(n): 72578688
• Sum of proper divisors (its aliquot sum) s(n): 44415280
• 28163408 is an abundant number, because the sum of its proper divisors (44415280) is greater than itself. Its abundance is 16251872

Bases of 28163408

• Binary: 1101011011011110101010000₂
• Hexadecimal: 0x1ADBD50
• Base-36: GRN0W

Squares and roots of 28163408

• 28163408 squared (28163408²) is 793177550174464
• 28163408 cubed (28163408³) is 22338582962003900813312
• The square root of 28163408 is 5306.9207644359
• The cube root of 28163408 is 304.2484695305

Scales and comparisons

• 28,163,408 seconds is equal to 46 weeks, 3 days, 23 hours, 10 minutes, 8 seconds.
• To count from 1 to 28,163,408 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 28163408 cubic inches would be around 25.4 feet tall.

Recreational maths with 28163408

• 28163408 backwards is 80436182
• The number of decimal digits it has is: 8
• The sum of 28163408's digits is 32
• More coming soon!