28740420900

Names of 28740420900

• Cardinal: 28740420900 can be written as Twenty-eight billion, seven hundred forty million, four hundred twenty thousand, nine hundred.

Scientific notation

• Scientific notation: 2.87404209 × 10¹⁰

Factors of 28740420900

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5661

Divisors of 28740420900

• Number of divisors d(n): 81
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 25 30 36 45 50 60 75 90 100 150 180 225 300 450 900 5651 11302 16953 22604 28255 33906 50859 56510 67812 84765 101718 113020 141275 169530 203436 254295 282550 339060 423825 508590 565100 847650 1017180 1271475 1695300 2542950 5085900 31933801 63867602 95801403 127735204 159669005 191602806 287404209 319338010 383205612 479007015 574808418 638676020 798345025 958014030 1149616836 1437021045 1596690050 1916028060 2395035075 2874042090 3193380100 4790070150 5748084180 7185105225 9580140300 14370210450 28740420900
• Sum of all divisors σ(n): 90101196913
• Sum of proper divisors (its aliquot sum) s(n): 61360776013
• 28740420900 is an abundant number, because the sum of its proper divisors (61360776013) is greater than itself. Its abundance is 32620355113

Bases of 28740420900

• Binary: 11010110001000100000000010100100100₂
• Hexadecimal: 0x6B1100524
• Base-36: D7BAYP0

Squares and roots of 28740420900

• 28740420900 squared (28740420900²) is 826011793509156810000
• 28740420900 cubed (28740420900³) is 23739926613817054723501329000000
• 28740420900 is a perfect square number. Its square root is 169530
• The cube root of 28740420900 is 3063.1225654217

Scales and comparisons

• 28,740,420,900 seconds is equal to 913 years, 44 weeks, 3 days, 18 hours, 15 minutes.
• To count from 1 to 28,740,420,900 would take you about one thousand, eight hundred twenty-seven 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 28740420900 cubic inches would be around 255.3 feet tall.

Recreational maths with 28740420900

• 28740420900 backwards is 00902404782
• 28740420900 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28740420900's digits is 36
• More coming soon!