131211828

Names of 131211828

• Cardinal: 131211828 can be written as One hundred thirty-one million, two hundred eleven thousand, eight hundred twenty-eight.

Scientific notation

• Scientific notation: 1.31211828 × 10⁸

Factors of 131211828

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2752

Divisors of 131211828

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 127 132 198 254 381 396 508 762 1143 1397 1524 2286 2609 2794 4191 4572 5218 5588 7827 8382 10436 12573 15654 16764 23481 25146 28699 31308 46962 50292 57398 86097 93924 114796 172194 258291 331343 344388 516582 662686 994029 1033164 1325372 1988058 2982087 3644773 3976116 5964174 7289546 10934319 11928348 14579092 21868638 32802957 43737276 65605914 131211828
• Sum of all divisors σ(n): 364815360
• Sum of proper divisors (its aliquot sum) s(n): 233603532
• 131211828 is an abundant number, because the sum of its proper divisors (233603532) is greater than itself. Its abundance is 102391704

Bases of 131211828

• Binary: 111110100100010001000110100₂
• Hexadecimal: 0x7D22234
• Base-36: 264BP0

Squares and roots of 131211828

• 131211828 squared (131211828²) is 17216543807101584
• 131211828 cubed (131211828³) is 2259014184771878218335552
• The square root of 131211828 is 11454.7731535809
• The cube root of 131211828 is 508.1489064791

Scales and comparisons

• 131,211,828 seconds is equal to 4 years, 8 weeks, 6 days, 15 hours, 43 minutes, 48 seconds.
• To count from 1 to 131,211,828 would take you about 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 131211828 cubic inches would be around 42.3 feet tall.

Recreational maths with 131211828

• 131211828 backwards is 828112131
• The number of decimal digits it has is: 9
• The sum of 131211828's digits is 27
• More coming soon!