821404002729657601

Names of 821404002729657601

• Cardinal: 821404002729657601 can be written as Eight hundred twenty-one quadrillion, four hundred four trillion, two billion, seven hundred twenty-nine million, six hundred fifty-seven thousand, six hundred one.

Scientific notation

• Scientific notation: 8.21404002729657601 × 10¹⁷

Factors of 821404002729657601

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 7947712192503

Divisors of 821404002729657601

• Number of divisors d(n): 8
• Complete list of divisors:
  1 181 571 103351 7947712191751 1438535906706931 4538143661489821 821404002729657601
• Sum of all divisors σ(n): 827388630010150208
• Sum of proper divisors (its aliquot sum) s(n): 5984627280492607
• 821404002729657601 is a deficient number, because the sum of its proper divisors (5984627280492607) is less than itself. Its deficiency is 815419375449164994

Bases of 821404002729657601

• Binary: 101101100110001101101001011010100111110010010000010100000001₂
• Hexadecimal: 0xB663696A7C90501
• Base-36: 68NVF1IAD6O1

Squares and roots of 821404002729657601

• 821404002729657601 squared (821404002729657601²) is 674704535700303351634638618697075201
• 821404002729657601 cubed (821404002729657601³) is 554205006284084338549607601747519438816816038878252801
• The square root of 821404002729657601 is 906313413.0805179697
• The cube root of 821404002729657601 is 936524.0580201157

Scales and comparisons

• 821,404,002,729,657,601 seconds is equal to 26,118,106,517 years, 20 weeks, 6 days, 1 second.
• To count from 1 to 821,404,002,729,657,601 would take you about seventy-eight billion, three hundred fifty-four million, three hundred nineteen thousand, five hundred fifty-two 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 821404002729657601 cubic inches would be around 78043.7 feet tall.

Recreational maths with 821404002729657601

• 821404002729657601 backwards is 106756927200404128
• The number of decimal digits it has is: 18
• The sum of 821404002729657601's digits is 64
• More coming soon!