821426403599978

Names of 821426403599978

• Cardinal: 821426403599978 can be written as Eight hundred twenty-one trillion, four hundred twenty-six billion, four hundred three million, five hundred ninety-nine thousand, nine hundred seventy-eight.

Scientific notation

• Scientific notation: 8.21426403599978 × 10¹⁴

Factors of 821426403599978

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 5
• Sum of prime factors: 1038510782

Divisors of 821426403599978

• Number of divisors d(n): 32
• Complete list of divisors:
  1 2 11 22 157 229 314 458 1727 2519 3454 5038 35953 71906 395483 790966 1038510383 2077020766 11423614213 22847228426 163046130131 237818877707 326092260262 475637755414 1793507431441 2616007654777 3587014862882 5232015309554 37337563799999 74675127599998 410713201799989 821426403599978
• Sum of all divisors σ(n): 1358620824764160
• Sum of proper divisors (its aliquot sum) s(n): 537194421164182
• 821426403599978 is a deficient number, because the sum of its proper divisors (537194421164182) is less than itself. Its deficiency is 284231982435796

Bases of 821426403599978

• Binary: 10111010110001010100111100111111101110011001101010₂
• Hexadecimal: 0x2EB153CFEE66A
• Base-36: 83662W3OFE

Squares and roots of 821426403599978

• 821426403599978 squared (821426403599978²) is 674741336531193950198241600484
• 821426403599978 cubed (821426403599978³) is 554250349427061101416015418662575778027189352
• The square root of 821426403599978 is 28660537.3920304921
• The cube root of 821426403599978 is 93653.2571396075

Scales and comparisons

• 821,426,403,599,978 seconds is equal to 26,118,818 years, 41 weeks, 2 days, 15 hours, 59 minutes, 38 seconds.
• To count from 1 to 821,426,403,599,978 would take you about sixty-five million, two hundred ninety-seven thousand and forty-six 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 821426403599978 cubic inches would be around 7804.4 feet tall.

Recreational maths with 821426403599978

• 821426403599978 backwards is 879995304624128
• The number of decimal digits it has is: 15
• The sum of 821426403599978's digits is 77
• More coming soon!