820135400821256

Names of 820135400821256

• Cardinal: 820135400821256 can be written as Eight hundred twenty trillion, one hundred thirty-five billion, four hundred million, eight hundred twenty-one thousand, two hundred fifty-six.

Scientific notation

• Scientific notation: 8.20135400821256 × 10¹⁴

Factors of 820135400821256

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2482154

Divisors of 820135400821256

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 13 23 26 46 52 92 104 184 299 598 1196 2392 146819 293638 587276 1174552 1908647 2335297 3376837 3817294 4670594 6753674 7634588 9341188 13507348 15269176 18682376 27014696 30358861 43898881 53711831 60717722 87797762 107423662 121435444 175595524 214847324 242870888 351191048 429694648 698253803 1396507606 2793015212 5586030424 342865970243 685731940486 1371463880972 2742927761944 4457257613159 7885917315589 8914515226318 15771834631178 17829030452636 31543669262356 35658060905272 63087338524712 102516925102657 205033850205314 410067700410628 820135400821256
• Sum of all divisors σ(n): 1728056999894400
• Sum of proper divisors (its aliquot sum) s(n): 907921599073144
• 820135400821256 is an abundant number, because the sum of its proper divisors (907921599073144) is greater than itself. Its abundance is 87786198251888

Bases of 820135400821256

• Binary: 10111010011110100010100111001110111101001000001000₂
• Hexadecimal: 0x2E9E8A73BD208
• Base-36: 82PP02DP1K

Squares and roots of 820135400821256

• 820135400821256 squared (820135400821256²) is 672622075680242236799261417536
• 820135400821256 cubed (820135400821256³) is 551641175639240654359110000800268609119945216
• The square root of 820135400821256 is 28638006.2298557369
• The cube root of 820135400821256 is 93604.1677298567

Scales and comparisons

• 820,135,400,821,256 seconds is equal to 26,077,768 years, 46 weeks, 5 days, 21 hours, 56 seconds.
• To count from 1 to 820,135,400,821,256 would take you about sixty-five million, one hundred ninety-four thousand, four hundred twenty-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 820135400821256 cubic inches would be around 7800.3 feet tall.

Recreational maths with 820135400821256

• 820135400821256 backwards is 652128004531028
• The number of decimal digits it has is: 15
• The sum of 820135400821256's digits is 47
• More coming soon!