38400389391

Names of 38400389391

• Cardinal: 38400389391 can be written as Thirty-eight billion, four hundred million, three hundred eighty-nine thousand, three hundred ninety-one.

Scientific notation

• Scientific notation: 3.8400389391 × 10¹⁰

Factors of 38400389391

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 788

Divisors of 38400389391

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 13 21 39 91 97 169 273 291 331 337 507 679 993 1011 1183 1261 2037 2317 2359 3549 3783 4303 4381 6951 7077 8827 12909 13143 16393 26481 30121 30667 32107 32689 49179 55939 56953 90363 92001 96321 98067 111547 114751 167817 170859 224749 228823 334641 344253 391573 398671 417391 424957 674247 686469 780829 1174719 1196013 1252173 1274871 1450111 2342487 2921737 2974699 4350333 5426083 5524441 8765211 8924097 10150777 10820059 16278249 16573323 18851443 30452331 32460177 37982581 38671087 56554329 75740413 113947743 116013261 131960101 140660767 227221239 395880303 421982301 984625369 1828589971 2953876107 5485769913 12800129797 38400389391
• Sum of all divisors σ(n): 64399415808
• Sum of proper divisors (its aliquot sum) s(n): 25999026417
• 38400389391 is a deficient number, because the sum of its proper divisors (25999026417) is less than itself. Its deficiency is 12401362974

Bases of 38400389391

• Binary: 100011110000110101110111000100001111₂
• Hexadecimal: 0x8F0D7710F
• Base-36: HN2LM33

Squares and roots of 38400389391

• 38400389391 squared (38400389391²) is 1474589905380425350881
• 38400389391 cubed (38400389391³) is 56624826558646179463038204903471
• The square root of 38400389391 is 195960.1729714485
• The cube root of 38400389391 is 3373.7420648173

Scales and comparisons

• 38,400,389,391 seconds is equal to 1,221 years, 4 days, 22 hours, 49 minutes, 51 seconds.
• To count from 1 to 38,400,389,391 would take you about two thousand, four hundred forty-two 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 38400389391 cubic inches would be around 281.1 feet tall.

Recreational maths with 38400389391

• 38400389391 backwards is 19398300483
• The number of decimal digits it has is: 11
• The sum of 38400389391's digits is 48
• More coming soon!