399166142071721124864

Names of 399166142071721124864

• Cardinal: 399166142071721124864 can be written as Three hundred ninety-nine quintillion, one hundred sixty-six quadrillion, one hundred forty-two trillion, seventy-one billion, seven hundred twenty-one million, one hundred twenty-four thousand, eight hundred sixty-four.

Scientific notation

• Scientific notation: 3.99166142071721124864 × 10²⁰

Factors of 399166142071721124864

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 129936895205638392

Divisors of 399166142071721124864

• Number of divisors d(n): 44
• Complete list of divisors:
  1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 3072 129936895205638387 259873790411276774 389810685616915161 519747580822553548 779621371233830322 1039495161645107096 1559242742467660644 2078990323290214192 3118485484935321288 4157980646580428384 6236970969870642576 8315961293160856768 12473941939741285152 16631922586321713536 24947883879482570304 33263845172643427072 49895767758965140608 66527690345286854144 99791535517930281216 133055380690573708288 199583071035860562432 399166142071721124864
• Sum of all divisors σ(n): 1063923297943767120944
• Sum of proper divisors (its aliquot sum) s(n): 664757155872045996080
• 399166142071721124864 is an abundant number, because the sum of its proper divisors (664757155872045996080) is greater than itself. Its abundance is 265591013800324871216

Bases of 399166142071721124864

• Binary: 101011010001110001011000000110101011101100100000010110110010000000000₂
• Hexadecimal: 0x15A38B0357640B6400
• Base-36: 2C8ODO2Z6VD5HC

Squares and roots of 399166142071721124864

• 399166142071721124864 squared (399166142071721124864²) is 159333608976421453428870229127757479018496
• 399166142071721124864 cubed (399166142071721124864³) is 63600581997482306195664475072843340657183178923427411781484544
• The square root of 399166142071721124864 is 19979142676.0940151425
• The cube root of 399166142071721124864 is 7362939.5039532033

Scales and comparisons

• 399,166,142,071,721,124,864 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 399,166,142,071,721,124,864 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and nine 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 399166142071721124864 cubic inches would be around 613578.3 feet tall.

Recreational maths with 399166142071721124864

• 399166142071721124864 backwards is 468421127170241661993
• The number of decimal digits it has is: 21
• The sum of 399166142071721124864's digits is 84
• More coming soon!