399786668361

Names of 399786668361

• Cardinal: 399786668361 can be written as Three hundred ninety-nine billion, seven hundred eighty-six million, six hundred sixty-eight thousand, three hundred sixty-one.

Scientific notation

• Scientific notation: 3.99786668361 × 10¹¹

Factors of 399786668361

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 519

Divisors of 399786668361

• Number of divisors d(n): 60
• Complete list of divisors:
  1 3 9 27 81 163 243 353 489 729 1059 1467 2187 3177 4401 6561 9531 13203 19683 28593 39609 57539 85779 118827 124609 172617 257337 356481 373827 517851 772011 1069443 1121481 1553553 2316033 3208329 3364443 4660659 6948099 10093329 13981977 20311267 30279987 41945931 60933801 90839961 125837793 182801403 272519883 377513379 548404209 817559649 1132540137 1645212627 2452678947 4935637881 14806913643 44420740929 133262222787 399786668361
• Sum of all divisors σ(n): 605062848368
• Sum of proper divisors (its aliquot sum) s(n): 205276180007
• 399786668361 is a deficient number, because the sum of its proper divisors (205276180007) is less than itself. Its deficiency is 194510488354

Bases of 399786668361

• Binary: 101110100010101001001000111000101001001₂
• Hexadecimal: 0x5D15247149
• Base-36: 53NQNRK9

Squares and roots of 399786668361

• 399786668361 squared (399786668361²) is 159829380199188198426321
• 399786668361 cubed (399786668361³) is 63897655416037032405688655720329881
• The square root of 399786668361 is 632286.8560716725
• The cube root of 399786668361 is 7366.7528968853

Scales and comparisons

• 399,786,668,361 seconds is equal to 12,711 years, 50 weeks, 6 days, 12 hours, 19 minutes, 21 seconds.
• To count from 1 to 399,786,668,361 would take you about twenty-five thousand, four hundred twenty-three 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 399786668361 cubic inches would be around 613.9 feet tall.

Recreational maths with 399786668361

• 399786668361 backwards is 163866687993
• The number of decimal digits it has is: 12
• The sum of 399786668361's digits is 72
• More coming soon!