40140240

Names of 40140240

• Cardinal: 40140240 can be written as Forty million, one hundred forty thousand, two hundred forty.

Scientific notation

• Scientific notation: 4.014024 × 10⁷

Factors of 40140240

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 23910

Divisors of 40140240

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 40 42 48 56 60 70 80 84 105 112 120 140 168 210 240 280 336 420 560 840 1680 23893 47786 71679 95572 119465 143358 167251 191144 238930 286716 334502 358395 382288 477860 501753 573432 669004 716790 836255 955720 1003506 1146864 1338008 1433580 1672510 1911440 2007012 2508765 2676016 2867160 3345020 4014024 5017530 5734320 6690040 8028048 10035060 13380080 20070120 40140240
• Sum of all divisors σ(n): 142217088
• Sum of proper divisors (its aliquot sum) s(n): 102076848
• 40140240 is an abundant number, because the sum of its proper divisors (102076848) is greater than itself. Its abundance is 61936608

Bases of 40140240

• Binary: 10011001000111110111010000₂
• Hexadecimal: 0x2647DD0
• Base-36: NWCEO

Squares and roots of 40140240

• 40140240 squared (40140240²) is 1611238867257600
• 40140240 cubed (40140240³) is 64675514829048205824000
• The square root of 40140240 is 6335.6325651035
• The cube root of 40140240 is 342.3944015301

Scales and comparisons

• 40,140,240 seconds is equal to 1 year, 14 weeks, 2 days, 14 hours, 4 minutes.
• To count from 1 to 40,140,240 would take you about forty-seven weeks!

  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 40140240 cubic inches would be around 28.5 feet tall.

Recreational maths with 40140240

• 40140240 backwards is 04204104
• 40140240 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40140240's digits is 15
• More coming soon!