28693420

Names of 28693420

• Cardinal: 28693420 can be written as Twenty-eight million, six hundred ninety-three thousand, four hundred twenty.

Scientific notation

• Scientific notation: 2.869342 × 10⁷

Factors of 28693420

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 123

Divisors of 28693420

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 7 10 14 19 20 23 28 35 38 46 49 67 70 76 92 95 98 115 133 134 140 161 190 196 230 245 266 268 322 335 380 437 460 469 490 532 644 665 670 805 874 931 938 980 1127 1273 1330 1340 1541 1610 1748 1862 1876 2185 2254 2345 2546 2660 3059 3082 3220 3283 3724 4370 4508 4655 4690 5092 5635 6118 6164 6365 6566 7705 8740 8911 9310 9380 10787 11270 12236 12730 13132 15295 15410 16415 17822 18620 21413 21574 22540 25460 29279 30590 30820 32830 35644 42826 43148 44555 53935 58558 61180 62377 65660 75509 85652 89110 107065 107870 117116 124754 146395 151018 178220 204953 214130 215740 249508 292790 302036 311885 377545 409906 428260 585580 623770 755090 819812 1024765 1247540 1434671 1510180 2049530 2869342 4099060 5738684 7173355 14346710 28693420
• Sum of all divisors σ(n): 78140160
• Sum of proper divisors (its aliquot sum) s(n): 49446740
• 28693420 is an abundant number, because the sum of its proper divisors (49446740) is greater than itself. Its abundance is 20753320

Bases of 28693420

• Binary: 1101101011101001110101100₂
• Hexadecimal: 0x1B5D3AC
• Base-36: H2ZZG

Squares and roots of 28693420

• 28693420 squared (28693420²) is 823312351296400
• 28693420 cubed (28693420³) is 23623647086935149688000
• The square root of 28693420 is 5356.6239367721
• The cube root of 28693420 is 306.1451886231

Scales and comparisons

• 28,693,420 seconds is equal to 47 weeks, 3 days, 2 hours, 23 minutes, 40 seconds.
• To count from 1 to 28,693,420 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 28693420 cubic inches would be around 25.5 feet tall.

Recreational maths with 28693420

• 28693420 backwards is 02439682
• The number of decimal digits it has is: 8
• The sum of 28693420's digits is 34
• More coming soon!