137 (number)
137 is the natural number following 136 and preceding 138.
| |||
| Cardinal | One hundred [and] thirty seven | ||
| Ordinal | 137th | ||
| Factorization | |||
| Roman numeral | CXXXVII | ||
| Binary | 10001001 | ||
| Hexadecimal | 89 | ||
| Table of contents |
|
2 Physics 3 Other fields 4 External links |
One hundred thirty-seven is the 33rd prime number; the next is 139, with which it comprises a twin prime.
Using two radii to divide a circle according to the golden ratio yields sectors of approximately 137° (the golden angle) and 222°.
The numerical value of the fine structure constant α, a
dimensionless physical constant, is approximately 1/137. The physicist Arthur Eddington at one time thought α to be exactly 1/137, but careful measurements have shown this not to be the case: its value is currently estimated at 1/137.035 999 76(50).Mathematics
Physics