18821946817420

Names of 18821946817420

• Cardinal: 18821946817420 can be written as Eighteen trillion, eight hundred twenty-one billion, nine hundred forty-six million, eight hundred seventeen thousand, four hundred twenty.

Scientific notation

• Scientific notation: 1.882194681742 × 10¹³

Factors of 18821946817420

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 328880

Divisors of 18821946817420

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 10 20 151 302 604 755 1510 3020 20201 40402 80804 101005 202010 308521 404020 617042 1234084 1542605 3050351 3085210 6100702 6170420 12201404 15251755 30503510 46586671 61007020 93173342 186346684 232933355 465866710 931733420 6232432721 12464865442 24929730884 31162163605 62324327210 124648654420 941097340871 1882194681742 3764389363484 4705486704355 9410973408710 18821946817420
• Sum of all divisors σ(n): 39789949058496
• Sum of proper divisors (its aliquot sum) s(n): 20968002241076
• 18821946817420 is an abundant number, because the sum of its proper divisors (20968002241076) is greater than itself. Its abundance is 2146055423656

Bases of 18821946817420

• Binary: 100010001111001010011011101000011101110001100₂
• Hexadecimal: 0x111E53743B8C
• Base-36: 6O6OL607G

Squares and roots of 18821946817420

• 18821946817420 squared (18821946817420²) is 354265681997786866815456400
• 18821946817420 cubed (18821946817420³) is 6667969825799370305340652998444770488000
• The square root of 18821946817420 is 4338426.7675529571
• The cube root of 18821946817420 is 26600.4008162323

Scales and comparisons

• 18,821,946,817,420 seconds is equal to 598,479 years, 35 weeks, 5 days, 16 hours, 23 minutes, 40 seconds.
• To count from 1 to 18,821,946,817,420 would take you about one million, four hundred ninety-six thousand, one hundred ninety-nine 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 18821946817420 cubic inches would be around 2216.7 feet tall.

Recreational maths with 18821946817420

• 18821946817420 backwards is 02471864912881
• The number of decimal digits it has is: 14
• The sum of 18821946817420's digits is 61
• More coming soon!