1242145120

Names of 1242145120

• Cardinal: 1242145120 can be written as One billion, two hundred forty-two million, one hundred forty-five thousand, one hundred twenty.

Scientific notation

• Scientific notation: 1.24214512 × 10⁹

Factors of 1242145120

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 26887

Divisors of 1242145120

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 8 10 16 17 20 32 34 40 68 80 85 136 160 170 272 289 340 544 578 680 1156 1360 1445 2312 2720 2890 4624 5780 9248 11560 23120 26863 46240 53726 107452 134315 214904 268630 429808 456671 537260 859616 913342 1074520 1826684 2149040 2283355 3653368 4298080 4566710 7306736 7763407 9133420 14613472 15526814 18266840 31053628 36533680 38817035 62107256 73067360 77634070 124214512 155268140 248429024 310536280 621072560 1242145120
• Sum of all divisors σ(n): 3117459744
• Sum of proper divisors (its aliquot sum) s(n): 1875314624
• 1242145120 is an abundant number, because the sum of its proper divisors (1875314624) is greater than itself. Its abundance is 633169504

Bases of 1242145120

• Binary: 1001010000010011010000101100000₂
• Hexadecimal: 0x4A09A160
• Base-36: KJJHB4

Squares and roots of 1242145120

• 1242145120 squared (1242145120²) is 1542924499139814400
• 1242145120 cubed (1242145120³) is 1916536137134964654665728000
• The square root of 1242145120 is 35244.0792190687
• The cube root of 1242145120 is 1074.9562253675

Scales and comparisons

• 1,242,145,120 seconds is equal to 39 years, 25 weeks, 5 days, 16 hours, 18 minutes, 40 seconds.
• To count from 1 to 1,242,145,120 would take you about seventy-eight 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 1242145120 cubic inches would be around 89.6 feet tall.

Recreational maths with 1242145120

• 1242145120 backwards is 0215412421
• The number of decimal digits it has is: 10
• The sum of 1242145120's digits is 22
• More coming soon!