| 词条 | 160 (number) |
| 释义 |
| number = 160 | divisor=1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160 }} 160 (one hundred [and] sixty) is the natural number following 159 and preceding 161. In mathematics160 is the sum of the first 11 primes, as well as the sum of the cubes of the first three primes. Given 160, the Mertens function returns 0.[1] 160 is the smallest number n with exactly 12 solutions to the equation φ(x) = n. In telecommunications
See also
References1. ^{{Cite web|url=https://oeis.org/A028442|title=Sloane's A028442 : Numbers n such that Mertens' function is zero|last=|first=|date=|website=The On-Line Encyclopedia of Integer Sequences|publisher=OEIS Foundation|access-date=2016-05-28}} 2. ^{{citation|title=Short Message Service (SMS): The Creation of Personal Global Text Messaging|first=Friedhelm|last=Hillebrand|edition=2nd|publisher=John Wiley & Sons|year=2010|isbn=9780470689936|page=55|url=https://books.google.com/books?id=YPgfNaoYHUsC&pg=PA}}. External links{{Commons category|160 (number)}}
1 : Integers |
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