Numbers 3700-3799

A page of the Numeropedia - the Special Encyclopedia of Numbers

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3,709

[Math.]  A prime number.

[Math.]  Two multiples of 3709, 3709×2 = 7418 and 3709×7 = 25,963, use each of 9 digits 1-9 once.

3,720

[Math.]  Two consecutive sums of consecutive numbers:

225+226+…+240 = 241+242+…+255 = 3720.

3,729

[Math.]  The ratio 18645/3729 = 5, using each of 9 digits 1-9 once, shows how to arrange a 9-book set on 2 shelves to mark the book #5.

3,732

[Math.]  8,856,036 = 6531×1356 = 3732×2373.

3,733

[Math.]  A right-truncatable prime number: self, 373, 37 and 3 are prime numbers.

3,739

[Math.]  A right-truncatable prime number: self, 373, 37 and 3 are prime numbers.

3,741

[Math.]  A triangular number (sum of all integers from 1 to 86): 3741 = 1+2+…+85+86.

3,744

[Math.]  16,746,912 = 2556×6552 = 4473×3744.

3,745

[Math.]  37452 = 14,025,025.

3,751

[Math.]  Its odd powers end with 3,751. Its even powers end with 0001.

3,768

[Math.]  32,679,864 = 6594×4956 = 8673×3768.

3,771

[Math.]  Two multiples of number 3771, 3771×7 = 15,084 and 3771×7 = 26,397, use each of 10 digits 0-9 once.

3,779

[Math.]  Circular prime numbers: all 4 numbers 3779, 7793, 7937 and 9377 are prime.

3,780

[Math.]  Sum (in degrees) of all internal angles of a 23-side polygon.

3,784

[Math.]  3784 = 8×473, using the same digits in both sides.

3,785.41

[Measure]  1 gallon = 3785.411 784 ml (milliliters).

U.S. customary units for liquid measures: 1 gallon = 4 quarts = 8 pints = 32 gills = 128 fluid ounces = 1024 fluid drams = 61440 minims = 3.785411784 liters = 231 inch3.

3,792

[Math.]  37922 = 14,379,264.

3,793

[Math.]  A right-truncatable prime number: self, 379, 37 and 3 are prime numbers.

3,795

[Math.]  A pyramidal number (sum of all squares of integers from 1 to 22): 3795 = 12+22+…+212+222.

3,797

[Math.]  A right-truncatable prime number: self, 379, 37 and 3 are prime numbers.

3,798

[Math.]  Two multiples of number 3798, 3798×2 = 7596 and 3798×9 = 34,182, use each of 9 digits 1-9 once.