242820

Names of 242820

• Cardinal: 242820 can be written as Two hundred forty-two thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 2.4282 × 10⁵

Factors of 242820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 100

Divisors of 242820

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 19 20 30 36 38 45 57 60 71 76 90 95 114 142 171 180 190 213 228 284 285 342 355 380 426 570 639 684 710 852 855 1065 1140 1278 1349 1420 1710 2130 2556 2698 3195 3420 4047 4260 5396 6390 6745 8094 12141 12780 13490 16188 20235 24282 26980 40470 48564 60705 80940 121410 242820
• Sum of all divisors σ(n): 786240
• Sum of proper divisors (its aliquot sum) s(n): 543420
• 242820 is an abundant number, because the sum of its proper divisors (543420) is greater than itself. Its abundance is 300600

Bases of 242820

• Binary: 111011010010000100₂
• Hexadecimal: 0x3B484
• Base-36: 57D0

Squares and roots of 242820

• 242820 squared (242820²) is 58961552400
• 242820 cubed (242820³) is 14317044153768000
• The square root of 242820 is 492.7676937463
• The cube root of 242820 is 62.3871028571

Scales and comparisons

• 242,820 seconds is equal to 2 days, 19 hours, 27 minutes.
• To count from 1 to 242,820 would take you about two days.

  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 242820 cubic inches would be around 5.2 feet tall.

Recreational maths with 242820

• 242820 backwards is 028242
• 242820 is a Harshad number.
• The number of decimal digits it has is: 6
• The sum of 242820's digits is 18
• More coming soon!