40137984

Names of 40137984

• Cardinal: 40137984 can be written as Forty million, one hundred thirty-seven thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 4.0137984 × 10⁷

Factors of 40137984

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 5812

Divisors of 40137984

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 96 108 128 144 192 216 256 288 384 432 576 768 864 1152 1728 2304 3456 5807 6912 11614 17421 23228 34842 46456 52263 69684 92912 104526 139368 156789 185824 209052 278736 313578 371648 418104 557472 627156 743296 836208 1114944 1254312 1486592 1672416 2229888 2508624 3344832 4459776 5017248 6689664 10034496 13379328 20068992 40137984
• Sum of all divisors σ(n): 118715520
• Sum of proper divisors (its aliquot sum) s(n): 78577536
• 40137984 is an abundant number, because the sum of its proper divisors (78577536) is greater than itself. Its abundance is 38439552

Bases of 40137984

• Binary: 10011001000111010100000000₂
• Hexadecimal: 0x2647500
• Base-36: NWAO0

Squares and roots of 40137984

• 40137984 squared (40137984²) is 1611057759584256
• 40137984 cubed (40137984³) is 64664610577268713979904
• The square root of 40137984 is 6335.4545219739
• The cube root of 40137984 is 342.3879868845

Scales and comparisons

• 40,137,984 seconds is equal to 1 year, 14 weeks, 2 days, 13 hours, 26 minutes, 24 seconds.
• To count from 1 to 40,137,984 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 40137984 cubic inches would be around 28.5 feet tall.

Recreational maths with 40137984

• 40137984 backwards is 48973104
• 40137984 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40137984's digits is 36
• More coming soon!