864371649356721

Names of 864371649356721

• Cardinal: 864371649356721 can be written as Eight hundred sixty-four trillion, three hundred seventy-one billion, six hundred forty-nine million, three hundred fifty-six thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 8.64371649356721 × 10¹⁴

Factors of 864371649356721

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 57325351

Divisors of 864371649356721

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 9 11 33 99 223 669 683 2007 2049 2453 6147 7359 7513 22077 22539 67617 152309 456927 1370781 1675399 5026197 15078591 57324431 171973293 515919879 630568741 1891706223 5675118669 12783348113 38350044339 39152586373 115050133017 117457759119 140616829243 352373277357 421850487729 430678450103 1265551463187 1292035350309 3876106050927 8731026761179 26193080283537 78579240850611 96041294372969 288123883118907 864371649356721
• Sum of all divisors σ(n): 1370151147036672
• Sum of proper divisors (its aliquot sum) s(n): 505779497679951
• 864371649356721 is a deficient number, because the sum of its proper divisors (505779497679951) is less than itself. Its deficiency is 358592151676770

Bases of 864371649356721

• Binary: 11000100100010010000110101000111010010001110110001₂
• Hexadecimal: 0x31224351D23B1
• Base-36: 8IE6UQM1M9

Squares and roots of 864371649356721

• 864371649356721 squared (864371649356721²) is 747138348211658239133107871841
• 864371649356721 cubed (864371649356721³) is 645805206341367171896331720399887208959993361
• The square root of 864371649356721 is 29400198.1176440543
• The cube root of 864371649356721 is 95257.7175627713

Scales and comparisons

• 864,371,649,356,721 seconds is equal to 27,484,344 years, 40 weeks, 1 day, 4 hours, 25 minutes, 21 seconds.
• To count from 1 to 864,371,649,356,721 would take you about sixty-eight million, seven hundred ten thousand, eight hundred sixty-one 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 864371649356721 cubic inches would be around 7938.1 feet tall.

Recreational maths with 864371649356721

• 864371649356721 backwards is 127653946173468
• The number of decimal digits it has is: 15
• The sum of 864371649356721's digits is 72
• More coming soon!