1668439040

Names of 1668439040

• Cardinal: 1668439040 can be written as One billion, six hundred sixty-eight million, four hundred thirty-nine thousand and forty.

Scientific notation

• Scientific notation: 1.66843904 × 10⁹

Factors of 1668439040

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 1659

Divisors of 1668439040

• Number of divisors d(n): 88
• Complete list of divisors:
  1 2 4 5 8 10 16 20 32 40 64 80 128 160 229 256 320 458 512 640 916 1024 1145 1280 1423 1832 2290 2560 2846 3664 4580 5120 5692 7115 7328 9160 11384 14230 14656 18320 22768 28460 29312 36640 45536 56920 58624 73280 91072 113840 117248 146560 182144 227680 234496 293120 325867 364288 455360 586240 651734 728576 910720 1172480 1303468 1457152 1629335 1821440 2606936 3258670 3642880 5213872 6517340 7285760 10427744 13034680 20855488 26069360 41710976 52138720 83421952 104277440 166843904 208554880 333687808 417109760 834219520 1668439040
• Sum of all divisors σ(n): 4022600640
• Sum of proper divisors (its aliquot sum) s(n): 2354161600
• 1668439040 is an abundant number, because the sum of its proper divisors (2354161600) is greater than itself. Its abundance is 685722560

Bases of 1668439040

• Binary: 1100011011100100101110000000000₂
• Hexadecimal: 0x63725C00
• Base-36: RLCFSW

Squares and roots of 1668439040

• 1668439040 squared (1668439040²) is 2783688830196121600
• 1668439040 cubed (1668439040³) is 4644415119511140134027264000
• The square root of 1668439040 is 40846.5303300047
• The cube root of 1668439040 is 1186.0512287969

Scales and comparisons

• 1,668,439,040 seconds is equal to 53 years, 2 weeks, 4 days, 15 hours, 17 minutes, 20 seconds.
• To count from 1 to 1,668,439,040 would take you about one hundred 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 1668439040 cubic inches would be around 98.8 feet tall.

Recreational maths with 1668439040

• 1668439040 backwards is 0409348661
• The number of decimal digits it has is: 10
• The sum of 1668439040's digits is 41
• More coming soon!