1428938247

Names of 1428938247

• Cardinal: 1428938247 can be written as One billion, four hundred twenty-eight million, nine hundred thirty-eight thousand, two hundred forty-seven.

Scientific notation

• Scientific notation: 1.428938247 × 10⁹

Factors of 1428938247

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 341

Divisors of 1428938247

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 11 17 33 51 53 121 159 187 257 289 363 561 583 771 867 901 1749 2057 2703 2827 3179 4369 6171 6413 8481 9537 9911 13107 13621 15317 19239 29733 31097 34969 40863 45951 48059 74273 93291 104907 109021 144177 149831 168487 222819 231557 327063 449493 505461 528649 694671 817003 1585947 1648141 1853357 2451009 2547127 3936469 4944423 5560071 7641381 8987033 11809407 26961099 28018397 43301159 84055191 129903477 476312749 1428938247
• Sum of all divisors σ(n): 2275429968
• Sum of proper divisors (its aliquot sum) s(n): 846491721
• 1428938247 is a deficient number, because the sum of its proper divisors (846491721) is less than itself. Its deficiency is 582446526

Bases of 1428938247

• Binary: 1010101001010111101111000000111₂
• Hexadecimal: 0x552BDE07
• Base-36: NMR3T3

Squares and roots of 1428938247

• 1428938247 squared (1428938247²) is 2041864513739433009
• 1428938247 cubed (1428938247³) is 2917698298874332818654395223
• The square root of 1428938247 is 37801.2995411533
• The cube root of 1428938247 is 1126.3442688389

Scales and comparisons

• 1,428,938,247 seconds is equal to 45 years, 22 weeks, 4 days, 15 hours, 17 minutes, 27 seconds.
• To count from 1 to 1,428,938,247 would take you about ninety 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 1428938247 cubic inches would be around 93.9 feet tall.

Recreational maths with 1428938247

• 1428938247 backwards is 7428398241
• The number of decimal digits it has is: 10
• The sum of 1428938247's digits is 48
• More coming soon!