Contribute to McGill's "Crossnumbers" Math Magazine!

[Dragonfall]

This is probably in the wrong section. Anyway, McGill's starting an 'undergrad math magazine' in which I want to contribute a little something I came up called 'Crossnumbers' in its recreation section. The idea is really self-explanatory. I've come up with a few 'interesting' integers already, but if you can think up of something, please contribute!

The numbers are to be filled in. The clues are on the right. For example:

999999: The Feynman Point

1729: Smallest integer expressible as the sum of two cubes in two different ways

762: The position in the decimal expansion of a certain number at which the Feynman point occurs

4294967297: First non-prime Fermat number

7427466391: First ten-digit prime in the decimal expansion of e

etc.

 

[Jeff Ford]

Sounds like fun. Is this going to be a published magazine?

 

[Hurkyl]

1729: Smallest integer expressible as the sum of two cubes in two different ways

Not true! 0 is expressible as the sum of 2 cubes in 2 different ways, as is -1729, and...

 

[NateTG]

Ah... but what is the smallest positive non-interesting number?

 

[matt grime]

Come, we all know there is no such thing.

 

[HallsofIvy]

Since the fact that it was the smallest non-interesting number makes it "interesting". (Where "interesting" is defined as "having a property no other number has".)

 

[Dragonfall]

It'll be published and given away for free, for McGill students anyway.