133640990

Names of 133640990

• Cardinal: 133640990 can be written as One hundred thirty-three million, six hundred forty thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 1.3364099 × 10⁸

Factors of 133640990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1617

Divisors of 133640990

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 7 10 14 29 35 43 58 70 86 145 203 215 290 301 406 430 602 1015 1247 1505 1531 2030 2494 3010 3062 6235 7655 8729 10717 12470 15310 17458 21434 43645 44399 53585 65833 87290 88798 107170 131666 221995 310793 329165 443990 460831 621586 658330 921662 1553965 1909157 2304155 3107930 3818314 4608310 9545785 13364099 19091570 26728198 66820495 133640990
• Sum of all divisors σ(n): 291202560
• Sum of proper divisors (its aliquot sum) s(n): 157561570
• 133640990 is an abundant number, because the sum of its proper divisors (157561570) is greater than itself. Its abundance is 23920580

Bases of 133640990

• Binary: 111111101110011001100011110₂
• Hexadecimal: 0x7F7331E
• Base-36: 27KE1Q

Squares and roots of 133640990

• 133640990 squared (133640990²) is 17859914208180100
• 133640990 cubed (133640990³) is 2386816616096254662299000
• The square root of 133640990 is 11560.3196322593
• The cube root of 133640990 is 511.2655867703

Scales and comparisons

• 133,640,990 seconds is equal to 4 years, 12 weeks, 6 days, 18 hours, 29 minutes, 50 seconds.
• To count from 1 to 133,640,990 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 133640990 cubic inches would be around 42.6 feet tall.

Recreational maths with 133640990

• 133640990 backwards is 099046331
• 133640990 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 133640990's digits is 35
• More coming soon!