28720829448

Names of 28720829448

• Cardinal: 28720829448 can be written as Twenty-eight billion, seven hundred twenty million, eight hundred twenty-nine thousand, four hundred forty-eight.

Scientific notation

• Scientific notation: 2.8720829448 × 10¹⁰

Factors of 28720829448

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2610

Divisors of 28720829448

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 101 108 202 216 303 404 606 751 808 909 1212 1502 1753 1818 2253 2424 2727 3004 3506 3636 4506 5259 5454 6008 6759 7012 7272 9012 10518 10908 13518 14024 15777 18024 20277 21036 21816 27036 31554 40554 42072 47331 54072 63108 75851 81108 94662 126216 151702 162216 177053 189324 227553 303404 354106 378648 455106 531159 606808 682659 708212 910212 1062318 1316503 1365318 1416424 1593477 1820424 2047977 2124636 2633006 2730636 3186954 3949509 4095954 4249272 4780431 5266012 5461272 6373908 7899018 8191908 9560862 10532024 11848527 12747816 15798036 16383816 19121724 23697054 31596072 35545581 38243448 47394108 71091162 94788216 132966803 142182324 265933606 284364648 398900409 531867212 797800818 1063734424 1196701227 1595601636 2393402454 3191203272 3590103681 4786804908 7180207362 9573609816 14360414724 28720829448
• Sum of all divisors σ(n): 80723289600
• Sum of proper divisors (its aliquot sum) s(n): 52002460152
• 28720829448 is an abundant number, because the sum of its proper divisors (52002460152) is greater than itself. Its abundance is 23281630704

Bases of 28720829448

• Binary: 11010101111111001010001010000001000₂
• Hexadecimal: 0x6AFE51408
• Base-36: D6ZN1U0

Squares and roots of 28720829448

• 28720829448 squared (28720829448²) is 824886044181103984704
• 28720829448 cubed (28720829448³) is 23691411388960880369036784763392
• The square root of 28720829448 is 169472.2084826889
• The cube root of 28720829448 is 3062.4263953833

Scales and comparisons

• 28,720,829,448 seconds is equal to 913 years, 12 weeks, 1 day, 10 minutes, 48 seconds.
• To count from 1 to 28,720,829,448 would take you about one thousand, eight hundred twenty-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 28720829448 cubic inches would be around 255.2 feet tall.

Recreational maths with 28720829448

• 28720829448 backwards is 84492802782
• 28720829448 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 28720829448's digits is 54
• More coming soon!