40091868

Names of 40091868

• Cardinal: 40091868 can be written as Forty million, ninety-one thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 4.0091868 × 10⁷

Factors of 40091868

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 248

Divisors of 40091868

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 9 12 18 27 36 37 54 74 79 108 111 127 148 158 222 237 254 316 333 381 444 474 508 666 711 762 948 999 1143 1332 1422 1524 1998 2133 2286 2844 2923 3429 3996 4266 4572 4699 5846 6858 8532 8769 9398 10033 11692 13716 14097 17538 18796 20066 26307 28194 30099 35076 40132 42291 52614 56388 60198 78921 84582 90297 105228 120396 126873 157842 169164 180594 253746 270891 315684 361188 371221 507492 541782 742442 1083564 1113663 1484884 2227326 3340989 4454652 6681978 10022967 13363956 20045934 40091868
• Sum of all divisors σ(n): 108953600
• Sum of proper divisors (its aliquot sum) s(n): 68861732
• 40091868 is an abundant number, because the sum of its proper divisors (68861732) is greater than itself. Its abundance is 28769864

Bases of 40091868

• Binary: 10011000111100000011011100₂
• Hexadecimal: 0x263C0DC
• Base-36: NVB30

Squares and roots of 40091868

• 40091868 squared (40091868²) is 1607357879729424
• 40091868 cubed (40091868³) is 64441979942871942724032
• The square root of 40091868 is 6331.8139581009
• The cube root of 40091868 is 342.2568092671

Scales and comparisons

• 40,091,868 seconds is equal to 1 year, 14 weeks, 2 days, 37 minutes, 48 seconds.
• To count from 1 to 40,091,868 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 40091868 cubic inches would be around 28.5 feet tall.

Recreational maths with 40091868

• 40091868 backwards is 86819004
• 40091868 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 40091868's digits is 36
• More coming soon!