Numbers 270,000s

A page of the Numeropedia - the Special Encyclopedia of Numbers

All Numbers  &  200K  -  210K  -  220K  -  230K  -  240K  -  250K  -  260K  -  270K  -  280K  -  290K

[10K][100K…) * [200K…) * [300K…) * [400K…) * [500K…) * [600K…) * [700K…) * [800K…) * [900K…) &  1M

1  - 10 - 100  - 1000 - 10,000 - 100,000 - 1M - 10M - 100M1B10B - 100B - 1T - 10T - 100T - 1Q ...

270,000

[EECS]   270K(W) is one of standard numerical values for resistors (of tolerance class 5%).

 

[Math.]   Sum (in degrees) of all internal angles of a 1502-side polygon.

 

271,443

[Math.]   The 26th Lucas number.

  

273,529

[Math.]   273,529 = (–2–7+3+529)2 = 5232.

 

274,177

[Math.]   A prime factor of the Fermat number: (1+2^(26)) = 274177×67,280,421,310,721. Fermat number is a number of the form (1+2^(2n)).

 

274,924 & 275,444 

[Math.]  The 2nd known amicable/sociable number chain: 14316 → 19116 → 31704 → 47616 → 83328 → 177792 → 295488 → 629072 → 589786 → 294896 → 358336 → 418904 → 366556 → 274924 → 275444 → 243760 → 376736 → 381028 → 285778 → 152990 → 122410 → 97946 → 48976 → 45946 → 22976 → 22744 → 19916 → 17716 → 14316. (of 28 links, currently the longest, found by P. Poulet, 1918)

 

278,545

[Math.]   A Carmichael number: 278,545 = 5×17×29×113.

 

278,784

[Math.]   Sum of the first 32 cube numbers:

13+23+…+313+323 = 278,784 = (1+2+…+31+32)2 = 5282.

 

279,972

[Math.] 

7,683,984 = 1584×4851 = 27722

782432784 = 15984×48951 = 279722

78384320784 = 159984×489951 = 2799722

7839843200784 = 1599984×4899951 = 27999722

783998432000784 = 15999984×48999951 = 279999722

7839…9984320000784 = 159…999984×489…999951 = 279…9999722

...