28407443220

Names of 28407443220

• Cardinal: 28407443220 can be written as Twenty-eight billion, four hundred seven million, four hundred forty-three thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.840744322 × 10¹⁰

Factors of 28407443220

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2181

Divisors of 28407443220

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 13 15 18 20 26 30 36 39 45 52 60 65 78 90 117 130 156 169 180 195 234 260 338 390 468 507 585 599 676 780 845 1014 1170 1198 1521 1559 1690 1797 2028 2340 2396 2535 2995 3042 3118 3380 3594 4677 5070 5391 5990 6084 6236 7188 7605 7787 7795 8985 9354 10140 10782 11980 14031 15210 15574 15590 17970 18708 20267 21564 23361 23385 26955 28062 30420 31148 31180 35940 38935 40534 46722 46770 53910 56124 60801 70083 70155 77870 81068 93444 93540 101231 101335 107820 116805 121602 140166 140310 155740 182403 202462 202670 233610 243204 263471 280332 280620 303693 304005 350415 364806 404924 405340 467220 506155 526942 607386 608010 700830 729612 790413 911079 912015 933841 1012310 1053884 1214772 1216020 1317355 1401660 1518465 1580826 1822158 1824030 1867682 2024620 2371239 2634710 2801523 3036930 3161652 3644316 3648060 3735364 3952065 4555395 4669205 4742478 5269420 5603046 6073860 7904130 8404569 9110790 9338410 9484956 11206092 11856195 12139933 14007615 15808260 16809138 18221580 18676820 23712390 24279866 28015230 33618276 36419799 42022845 47424780 48559732 56030460 60699665 72839598 84045690 109259397 121399330 145679196 157819129 168091380 182098995 218518794 242798660 315638258 364197990 437037588 473457387 546296985 631276516 728395980 789095645 946914774 1092593970 1420372161 1578191290 1893829548 2185187940 2367286935 2840744322 3156382580 4734573870 5681488644 7101860805 9469147740 14203721610 28407443220
• Sum of all divisors σ(n): 93523248000
• Sum of proper divisors (its aliquot sum) s(n): 65115804780
• 28407443220 is an abundant number, because the sum of its proper divisors (65115804780) is greater than itself. Its abundance is 36708361560

Bases of 28407443220

• Binary: 11010011101001101110010111100010100₂
• Hexadecimal: 0x69D372F14
• Base-36: D1T23H0

Squares and roots of 28407443220

• 28407443220 squared (28407443220²) is 806982830297523968400
• 28407443220 cubed (28407443220³) is 22924318931191807838912074248000
• The square root of 28407443220 is 168545.0777091993
• The cube root of 28407443220 is 3051.2471194841

Scales and comparisons

• 28,407,443,220 seconds is equal to 903 years, 13 weeks, 6 days, 20 hours, 27 minutes.
• To count from 1 to 28,407,443,220 would take you about one thousand, eight hundred six years!

  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 28407443220 cubic inches would be around 254.3 feet tall.

Recreational maths with 28407443220

• 28407443220 backwards is 02234470482
• 28407443220 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28407443220's digits is 36
• More coming soon!