40040

Names of 40040

• Cardinal: 40040 can be written as Forty thousand and forty.

Scientific notation

• Scientific notation: 4.004 × 10⁴

Factors of 40040

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 38

Divisors of 40040

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 20 22 26 28 35 40 44 52 55 56 65 70 77 88 91 104 110 130 140 143 154 182 220 260 280 286 308 364 385 440 455 520 572 616 715 728 770 910 1001 1144 1430 1540 1820 2002 2860 3080 3640 4004 5005 5720 8008 10010 20020 40040
• Sum of all divisors σ(n): 120960
• Sum of proper divisors (its aliquot sum) s(n): 80920
• 40040 is an abundant number, because the sum of its proper divisors (80920) is greater than itself. Its abundance is 40880

Bases of 40040

• Binary: 1001110001101000₂
• Hexadecimal: 0x9C68
• Base-36: UW8

Squares and roots of 40040

• 40040 squared (40040²) is 1603201600
• 40040 cubed (40040³) is 64192192064000
• The square root of 40040 is 200.0999750125
• The cube root of 40040 is 34.2109149753

Scales and comparisons

• 40,040 seconds is equal to 11 hours, 7 minutes, 20 seconds.
• To count from 1 to 40,040 would take you about eleven hours.

  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 40040 cubic inches would be around 2.9 feet tall.

Recreational maths with 40040

• 40040 backwards is 04004
• 40040 is a Harshad number.
• The number of decimal digits it has is: 5
• The sum of 40040's digits is 8
• More coming soon!