1538368020

Names of 1538368020

• Cardinal: 1538368020 can be written as One billion, five hundred thirty-eight million, three hundred sixty-eight thousand and twenty.

Scientific notation

• Scientific notation: 1.53836802 × 10⁹

Factors of 1538368020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1220944

Divisors of 1538368020

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 180 210 252 315 420 630 1260 1220927 2441854 3662781 4883708 6104635 7325562 8546489 10988343 12209270 14651124 17092978 18313905 21976686 24418540 25639467 34185956 36627810 42732445 43953372 51278934 54941715 73255620 76918401 85464890 102557868 109883430 128197335 153836802 170929780 219766860 256394670 307673604 384592005 512789340 769184010 1538368020
• Sum of all divisors σ(n): 5333013504
• Sum of proper divisors (its aliquot sum) s(n): 3794645484
• 1538368020 is an abundant number, because the sum of its proper divisors (3794645484) is greater than itself. Its abundance is 2256277464

Bases of 1538368020

• Binary: 1011011101100011010001000010100₂
• Hexadecimal: 0x5BB1A214
• Base-36: PFWKD0

Squares and roots of 1538368020

• 1538368020 squared (1538368020²) is 2366576164958720400
• 1538368020 cubed (1538368020³) is 3640665089066740083481608000
• The square root of 1538368020 is 39222.0348783689
• The cube root of 1538368020 is 1154.3922816351

Scales and comparisons

• 1,538,368,020 seconds is equal to 48 years, 47 weeks, 4 days, 4 hours, 27 minutes.
• To count from 1 to 1,538,368,020 would take you about ninety-seven 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 1538368020 cubic inches would be around 96.2 feet tall.

Recreational maths with 1538368020

• 1538368020 backwards is 0208638351
• 1538368020 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1538368020's digits is 36
• More coming soon!