naravno število From Wikipedia, the free encyclopedia
181 (stó ênainósemdeset) je naravno število, za katerega velja 181 = 180 + 1 = 182 - 1.
| |||
Glavni števnik | sto enainosemdeset | ||
Vrstilni števnik | stoenainosemdeseti | ||
Razcep | 42. praštevilo | ||
Rimska številka | CLXXXI | ||
Dvojiško | 10110101 | ||
Šestnajstiško | B5 | ||
Matematične lastnosti | |||
---|---|---|---|
φ(181) = 180 | |||
τ(181) = 2 {1, 181} | |||
σ(181) = 182 | |||
π(181) = 42 | |||
μ(181) = -1 | |||
M(181) = -4 |
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