40099640

Names of 40099640

• Cardinal: 40099640 can be written as Forty million, ninety-nine thousand, six hundred forty.

Scientific notation

• Scientific notation: 4.009964 × 10⁷

Factors of 40099640

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 554

Divisors of 40099640

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 7 8 10 14 20 28 35 40 41 49 56 70 82 98 140 164 196 205 245 280 287 328 392 410 490 499 574 820 980 998 1148 1435 1640 1960 1996 2009 2296 2495 2870 3493 3992 4018 4990 5740 6986 8036 9980 10045 11480 13972 16072 17465 19960 20090 20459 24451 27944 34930 40180 40918 48902 69860 80360 81836 97804 102295 122255 139720 143213 163672 195608 204590 244510 286426 409180 489020 572852 716065 818360 978040 1002491 1145704 1432130 2004982 2864260 4009964 5012455 5728520 8019928 10024910 20049820 40099640
• Sum of all divisors σ(n): 107730000
• Sum of proper divisors (its aliquot sum) s(n): 67630360
• 40099640 is an abundant number, because the sum of its proper divisors (67630360) is greater than itself. Its abundance is 27530720

Bases of 40099640

• Binary: 10011000111101111100111000₂
• Hexadecimal: 0x263DF38
• Base-36: NVH2W

Squares and roots of 40099640

• 40099640 squared (40099640²) is 1607981128129600
• 40099640 cubed (40099640³) is 64479464364790833344000
• The square root of 40099640 is 6332.4276545413
• The cube root of 40099640 is 342.2789238769

Scales and comparisons

• 40,099,640 seconds is equal to 1 year, 14 weeks, 2 days, 2 hours, 47 minutes, 20 seconds.
• To count from 1 to 40,099,640 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 40099640 cubic inches would be around 28.5 feet tall.

Recreational maths with 40099640

• 40099640 backwards is 04699004
• The number of decimal digits it has is: 8
• The sum of 40099640's digits is 32
• More coming soon!