- In
number theory, a
noncototient is a
positive integer n that
cannot be
expressed as the
difference between a
positive integer m and the
number of coprime...
- only known) 3-hyperperfect number. 326 = 2 × 163. 326 is a nontotient,
noncototient, and an
untouchable number. 326 is the sum of the 14
consecutive primes...
-
southern Alberta. 404 = 22 × 101,
Mertens function returns 0, nontotient,
noncototient,
number of
integer partitions of 20 with an
alternating permutation....
- of
squares of
divisors of 19,
Mertens function returns 0, nontotient,
noncototient. 364 = 2 2 × 7 × 13 {\displaystyle 364=2^{2}\times 7\times 13} , tetrahedral...
- 310 is a
sphenic number meaning that it has 3
prime factors. 310 is a
noncototient number which means that m − φ(m) = n has no
solution for n=310. 310 is...
- Nor is
there a
solution to the
equation x − φ(x) = 50,
making 50 a
noncototient.
Fifty is the sum of the
number of
faces that make up the
Platonic solids...
-
since it is
never the sum of
proper divisors of any number, and it is a
noncototient since it is not
equal to x − φ(x) for any x. a
vertically symmetrical...
-
number following 129 and
preceding 131. 130 is a
sphenic number. It is a
noncototient since there is no
answer to the
equation x - φ(x) = 130. 130 is the only...
- sixteen) is the
natural number following 115 and
preceding 117. 116 is a
noncototient,
meaning that
there is no
solution to the
equation m − φ(m) = n, where...
-
whose digit sum in
decimal is the same as it is in binary. 222 is a
noncototient,
meaning that it
cannot be
written in the form n − φ(n)
where φ is Euler's...
