394378431495890

Names of 394378431495890

• Cardinal: 394378431495890 can be written as Three hundred ninety-four trillion, three hundred seventy-eight billion, four hundred thirty-one million, four hundred ninety-five thousand, eight hundred ninety.

Scientific notation

• Scientific notation: 3.9437843149589 × 10¹⁴

Factors of 394378431495890

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 13635

Divisors of 394378431495890

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 5 10 1093 1613 2186 2731 3226 5462 5465 8065 8191 10930 13655 16130 16382 27310 40955 81910 1763009 2984983 3526018 4405103 5969966 8810206 8815045 8952763 13212083 14924915 17630090 17905526 22025515 22369621 26424166 29849830 44051030 44739242 44763815 66060415 89527630 111848105 132120830 223696210 4814777579 9629555158 14440806719 24073887895 24449995753 28881613438 36082198673 48147775790 48899991506 72164397346 72204033595 122249978765 144408067190 180410993365 244499957530 360821986730 39437843149589 78875686299178 197189215747945 394378431495890
• Sum of all divisors σ(n): 711318323331072
• Sum of proper divisors (its aliquot sum) s(n): 316939891835182
• 394378431495890 is a deficient number, because the sum of its proper divisors (316939891835182) is less than itself. Its deficiency is 77438539660708

Bases of 394378431495890

• Binary: 1011001101010111101100010010100001111111011010010₂
• Hexadecimal: 0x166AF6250FED2
• Base-36: 3VSMY7KA1E

Squares and roots of 394378431495890

• 394378431495890 squared (394378431495890²) is 155534347229158401543086892100
• 394378431495890 cubed (394378431495890³) is 61339391903972615298497947144265654023469000
• The square root of 394378431495890 is 19858963.5050747299
• The cube root of 394378431495890 is 73333.8329864695

Scales and comparisons

• 394,378,431,495,890 seconds is equal to 12,540,014 years, 11 weeks, 6 days, 8 hours, 24 minutes, 50 seconds.
• To count from 1 to 394,378,431,495,890 would take you about thirty-one million, three hundred fifty thousand and thirty-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 394378431495890 cubic inches would be around 6111.2 feet tall.

Recreational maths with 394378431495890

• 394378431495890 backwards is 098594134873493
• The number of decimal digits it has is: 15
• The sum of 394378431495890's digits is 77
• More coming soon!