821428593076040

Names of 821428593076040

• Cardinal: 821428593076040 can be written as Eight hundred twenty-one trillion, four hundred twenty-eight billion, five hundred ninety-three million, seventy-six thousand and forty.

Scientific notation

• Scientific notation: 8.2142859307604 × 10¹⁴

Factors of 821428593076040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 28801844138

Divisors of 821428593076040

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 8 10 20 23 31 40 46 62 92 115 124 155 184 230 248 310 460 620 713 920 1240 1426 2852 3565 5704 7130 14260 28520 28801844077 57603688154 115207376308 144009220385 230414752616 288018440770 576036881540 662442413771 892857166387 1152073763080 1324884827542 1785714332774 2649769655084 3312212068855 3571428665548 4464285831935 5299539310168 6624424137710 7142857331096 8928571663870 13248848275420 17857143327740 20535714826901 26497696550840 35714286655480 41071429653802 82142859307604 102678574134505 164285718615208 205357148269010 410714296538020 821428593076040
• Sum of all divisors σ(n): 1990783462671360
• Sum of proper divisors (its aliquot sum) s(n): 1169354869595320
• 821428593076040 is an abundant number, because the sum of its proper divisors (1169354869595320) is greater than itself. Its abundance is 347926276519280

Bases of 821428593076040

• Binary: 10111010110001010110111111011111111010011101001000₂
• Hexadecimal: 0x2EB15BF7FA748
• Base-36: 836733NQYW

Squares and roots of 821428593076040

• 821428593076040 squared (821428593076040²) is 674744933522882509429222081600
• 821428593076040 cubed (821428593076040³) is 554254781428887517769835113590217235884864000
• The square root of 821428593076040 is 28660575.5887079141
• The cube root of 821428593076040 is 93653.3403490837

Scales and comparisons

• 821,428,593,076,040 seconds is equal to 26,118,888 years, 21 weeks, 3 days, 19 hours, 47 minutes, 20 seconds.
• To count from 1 to 821,428,593,076,040 would take you about sixty-five million, two hundred ninety-seven thousand, two hundred twenty-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 821428593076040 cubic inches would be around 7804.4 feet tall.

Recreational maths with 821428593076040

• 821428593076040 backwards is 040670395824128
• The number of decimal digits it has is: 15
• The sum of 821428593076040's digits is 59
• More coming soon!