1421367840

Names of 1421367840

• Cardinal: 1421367840 can be written as One billion, four hundred twenty-one million, three hundred sixty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 1.42136784 × 10⁹

Factors of 1421367840

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 987071

Divisors of 1421367840

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 72 80 90 96 120 144 160 180 240 288 360 480 720 1440 987061 1974122 2961183 3948244 4935305 5922366 7896488 8883549 9870610 11844732 14805915 15792976 17767098 19741220 23689464 29611830 31585952 35534196 39482440 44417745 47378928 59223660 71068392 78964880 88835490 94757856 118447320 142136784 157929760 177670980 236894640 284273568 355341960 473789280 710683920 1421367840
• Sum of all divisors σ(n): 4850422668
• Sum of proper divisors (its aliquot sum) s(n): 3429054828
• 1421367840 is an abundant number, because the sum of its proper divisors (3429054828) is greater than itself. Its abundance is 2007686988

Bases of 1421367840

• Binary: 1010100101110000101101000100000₂
• Hexadecimal: 0x54B85A20
• Base-36: NI8UG0

Squares and roots of 1421367840

• 1421367840 squared (1421367840²) is 2020286536586265600
• 1421367840 cubed (1421367840³) is 2871570310688701309538304000
• The square root of 1421367840 is 37701.0323466083
• The cube root of 1421367840 is 1124.3516501245

Scales and comparisons

• 1,421,367,840 seconds is equal to 45 years, 10 weeks, 1 day, 24 minutes.
• To count from 1 to 1,421,367,840 would take you about ninety 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 1421367840 cubic inches would be around 93.7 feet tall.

Recreational maths with 1421367840

• 1421367840 backwards is 0487631241
• 1421367840 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 1421367840's digits is 36
• More coming soon!