1231828728

Names of 1231828728

• Cardinal: 1231828728 can be written as One billion, two hundred thirty-one million, eight hundred twenty-eight thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.231828728 × 10⁹

Factors of 1231828728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2005

Divisors of 1231828728

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 1987 3974 5961 7948 11922 15896 23844 25831 47688 51662 77493 103324 154986 206648 309972 619944 3948169 7896338 11844507 15792676 23689014 31585352 47378028 51326197 94756056 102652394 153978591 205304788 307957182 410609576 615914364 1231828728
• Sum of all divisors σ(n): 3318131880
• Sum of proper divisors (its aliquot sum) s(n): 2086303152
• 1231828728 is an abundant number, because the sum of its proper divisors (2086303152) is greater than itself. Its abundance is 854474424

Bases of 1231828728

• Binary: 1001001011011000011011011111000₂
• Hexadecimal: 0x496C36F8
• Base-36: KDED4O

Squares and roots of 1231828728

• 1231828728 squared (1231828728²) is 1517402015126097984
• 1231828728 cubed (1231828728³) is 1869179394157418039234084352
• The square root of 1231828728 is 35097.4176827869
• The cube root of 1231828728 is 1071.9720025917

Scales and comparisons

• 1,231,828,728 seconds is equal to 39 years, 8 weeks, 5 days, 6 hours, 38 minutes, 48 seconds.
• To count from 1 to 1,231,828,728 would take you about seventy-eight 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 1231828728 cubic inches would be around 89.3 feet tall.

Recreational maths with 1231828728

• 1231828728 backwards is 8278281321
• The number of decimal digits it has is: 10
• The sum of 1231828728's digits is 42
• More coming soon!