642478283982081

Names of 642478283982081

• Cardinal: 642478283982081 can be written as Six hundred forty-two trillion, four hundred seventy-eight billion, two hundred eighty-three million, nine hundred eighty-two thousand and eighty-one.

Scientific notation

• Scientific notation: 6.42478283982081 × 10¹⁴

Factors of 642478283982081

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1139715

Divisors of 642478283982081

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 29 47 87 141 261 423 1363 4089 12267 47977 143931 431793 1091659 1391333 2254919 3274977 4173999 6764757 9824931 12521997 20294271 31658111 51307973 65392651 94974333 153923919 196177953 284922999 461771757 588533859 1487931217 4463793651 13391380953 52374523843 157123571529 471370714587 1518861191447 2461602620621 4556583574341 7384807861863 13669750723023 22154423585589 71386475998009 214159427994027 642478283982081
• Sum of all divisors σ(n): 980472420345600
• Sum of proper divisors (its aliquot sum) s(n): 337994136363519
• 642478283982081 is a deficient number, because the sum of its proper divisors (337994136363519) is less than itself. Its deficiency is 304484147618562

Bases of 642478283982081

• Binary: 10010010000101010010100001111001001000010100000001₂
• Hexadecimal: 0x24854A1E48501
• Base-36: 6BQMG5ZGU9

Squares and roots of 642478283982081

• 642478283982081 squared (642478283982081²) is 412778345388559519258329090561
• 642478283982081 cubed (642478283982081³) is 265201123010204457993938628785321878350237441
• The square root of 642478283982081 is 25347155.3429981761
• The cube root of 642478283982081 is 86288.4797668135

Scales and comparisons

• 642,478,283,982,081 seconds is equal to 20,428,822 years, 5 weeks, 6 days, 19 hours, 1 minute, 21 seconds.
• To count from 1 to 642,478,283,982,081 would take you about fifty-one million, seventy-two thousand and fifty-five 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 642478283982081 cubic inches would be around 7190.7 feet tall.

Recreational maths with 642478283982081

• 642478283982081 backwards is 180289382874246
• The number of decimal digits it has is: 15
• The sum of 642478283982081's digits is 72
• More coming soon!