28430220

Names of 28430220

• Cardinal: 28430220 can be written as Twenty-eight million, four hundred thirty thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.843022 × 10⁷

Factors of 28430220

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 198

Divisors of 28430220

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 13 14 15 20 21 26 28 30 35 39 41 42 52 60 65 70 78 82 84 91 105 123 127 130 140 156 164 182 195 205 210 246 254 260 273 287 364 381 390 410 420 455 492 508 533 546 574 615 635 762 780 820 861 889 910 1066 1092 1148 1230 1270 1365 1435 1524 1599 1651 1722 1778 1820 1905 2132 2460 2540 2665 2667 2730 2870 3198 3302 3444 3556 3731 3810 4305 4445 4953 5207 5330 5334 5460 5740 6396 6604 7462 7620 7995 8255 8610 8890 9906 10414 10660 10668 11193 11557 13335 14924 15621 15990 16510 17220 17780 18655 19812 20828 22386 23114 24765 26035 26670 31242 31980 33020 34671 36449 37310 44772 46228 49530 52070 53340 55965 57785 62484 67691 69342 72898 74620 78105 99060 104140 109347 111930 115570 135382 138684 145796 156210 173355 182245 203073 218694 223860 231140 270764 312420 338455 346710 364490 406146 437388 473837 546735 676910 693420 728980 812292 947674 1015365 1093470 1353820 1421511 1895348 2030730 2186940 2369185 2843022 4061460 4738370 5686044 7107555 9476740 14215110 28430220
• Sum of all divisors σ(n): 101154816
• Sum of proper divisors (its aliquot sum) s(n): 72724596
• 28430220 is an abundant number, because the sum of its proper divisors (72724596) is greater than itself. Its abundance is 44294376

Bases of 28430220

• Binary: 1101100011100111110001100₂
• Hexadecimal: 0x1B1CF8C
• Base-36: GXCWC

Squares and roots of 28430220

• 28430220 squared (28430220²) is 808277409248400
• 28430220 cubed (28430220³) is 22979504565962046648000
• The square root of 28430220 is 5331.9996249063
• The cube root of 28430220 is 305.2062387253

Scales and comparisons

• 28,430,220 seconds is equal to 47 weeks, 1 hour, 17 minutes.
• To count from 1 to 28,430,220 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 28430220 cubic inches would be around 25.4 feet tall.

Recreational maths with 28430220

• 28430220 backwards is 02203482
• 28430220 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28430220's digits is 21
• More coming soon!