40074720

Names of 40074720

• Cardinal: 40074720 can be written as Forty million, seventy-four thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 4.007472 × 10⁷

Factors of 40074720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 11944

Divisors of 40074720

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 32 35 40 42 48 56 60 70 80 84 96 105 112 120 140 160 168 210 224 240 280 336 420 480 560 672 840 1120 1680 3360 11927 23854 35781 47708 59635 71562 83489 95416 119270 143124 166978 178905 190832 238540 250467 286248 333956 357810 381664 417445 477080 500934 572496 667912 715620 834890 954160 1001868 1144992 1252335 1335824 1431240 1669780 1908320 2003736 2504670 2671648 2862480 3339560 4007472 5009340 5724960 6679120 8014944 10018680 13358240 20037360 40074720
• Sum of all divisors σ(n): 144281088
• Sum of proper divisors (its aliquot sum) s(n): 104206368
• 40074720 is an abundant number, because the sum of its proper divisors (104206368) is greater than itself. Its abundance is 64131648

Bases of 40074720

• Binary: 10011000110111110111100000₂
• Hexadecimal: 0x2637DE0
• Base-36: NUXUO

Squares and roots of 40074720

• 40074720 squared (40074720²) is 1605983183078400
• 40074720 cubed (40074720³) is 64359326386575618048000
• The square root of 40074720 is 6330.4596989477
• The cube root of 40074720 is 342.2080058811

Scales and comparisons

• 40,074,720 seconds is equal to 1 year, 14 weeks, 1 day, 19 hours, 52 minutes.
• To count from 1 to 40,074,720 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 40074720 cubic inches would be around 28.5 feet tall.

Recreational maths with 40074720

• 40074720 backwards is 02747004
• 40074720 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40074720's digits is 24
• More coming soon!