399768765918340

Names of 399768765918340

• Cardinal: 399768765918340 can be written as Three hundred ninety-nine trillion, seven hundred sixty-eight billion, seven hundred sixty-five million, nine hundred eighteen thousand, three hundred forty.

Scientific notation

• Scientific notation: 3.9976876591834 × 10¹⁴

Factors of 399768765918340

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 219653168114

Divisors of 399768765918340

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 5 7 10 13 14 20 26 28 35 52 65 70 91 130 140 182 260 364 455 910 1820 219653168087 439306336174 878612672348 1098265840435 1537572176609 2196531680870 2855491185131 3075144353218 4393063361740 5710982370262 6150288706436 7687860883045 11421964740524 14277455925655 15375721766090 19988438295917 28554911851310 30751443532180 39976876591834 57109823702620 79953753183668 99942191479585 199884382959170 399768765918340
• Sum of all divisors σ(n): 1033248502685952
• Sum of proper divisors (its aliquot sum) s(n): 633479736767612
• 399768765918340 is an abundant number, because the sum of its proper divisors (633479736767612) is greater than itself. Its abundance is 233710970849272

Bases of 399768765918340

• Binary: 1011010111001011001101011010010001110110010000100₂
• Hexadecimal: 0x16B966B48EC84
• Base-36: 3XPF8HI5C4

Squares and roots of 399768765918340

• 399768765918340 squared (399768765918340²) is 159815066203872521143548355600
• 399768765918340 cubed (399768765918340³) is 63889071791479923892657004902959030881704000
• The square root of 399768765918340 is 19994218.3122606721
• The cube root of 399768765918340 is 73666.4293420581

Scales and comparisons

• 399,768,765,918,340 seconds is equal to 12,711,410 years, 9 weeks, 6 days, 5 hours, 45 minutes, 40 seconds.
• To count from 1 to 399,768,765,918,340 would take you about thirty-one million, seven hundred seventy-eight thousand, five hundred twenty-five 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 399768765918340 cubic inches would be around 6138.9 feet tall.

Recreational maths with 399768765918340

• 399768765918340 backwards is 043819567867993
• The number of decimal digits it has is: 15
• The sum of 399768765918340's digits is 85
• More coming soon!