6666747990

Names of 6666747990

• Cardinal: 6666747990 can be written as Six billion, six hundred sixty-six million, seven hundred forty-seven thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 6.66674799 × 10⁹

Factors of 6666747990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 69941

Divisors of 6666747990

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 457 914 1371 2285 2742 3199 4570 6398 6855 9597 13710 15995 19194 31990 47985 69467 95970 138934 208401 347335 416802 486269 694670 972538 1042005 1458807 2084010 2431345 2917614 4862690 7294035 14588070 31746419 63492838 95239257 158732095 190478514 222224933 317464190 444449866 476196285 666674799 952392570 1111124665 1333349598 2222249330 3333373995 6666747990
• Sum of all divisors σ(n): 18326214144
• Sum of proper divisors (its aliquot sum) s(n): 11659466154
• 6666747990 is an abundant number, because the sum of its proper divisors (11659466154) is greater than itself. Its abundance is 4992718164

Bases of 6666747990

• Binary: 110001101010111101000000001010110₂
• Hexadecimal: 0x18D5E8056
• Base-36: 3297JO6

Squares and roots of 6666747990

• 6666747990 squared (6666747990²) is 44445528762169040100
• 6666747990 cubed (6666747990³) is 296307139539677636126904399000
• The square root of 6666747990 is 81650.1560929311
• The cube root of 6666747990 is 1882.0797105497

Scales and comparisons

• 6,666,747,990 seconds is equal to 211 years, 51 weeks, 10 hours, 26 minutes, 30 seconds.
• To count from 1 to 6,666,747,990 would take you about four hundred twenty-three 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 6666747990 cubic inches would be around 156.8 feet tall.

Recreational maths with 6666747990

• 6666747990 backwards is 0997476666
• The number of decimal digits it has is: 10
• The sum of 6666747990's digits is 60
• More coming soon!