- In
number theory, a
superperfect number is a
positive integer n that
satisfies σ2(n)=σ(σ(n))=2n,{\displaystyle \sigma ^{2}(n)=\sigma (\sigma (n))=2n\,...
-
Superperfect may
refer to:
Superperfect group Superperfect number This
disambiguation page
lists articles ****ociated with the
title Superperfect. If an...
- In mathematics, in the
realm of
group theory, a
group is said to be
superperfect when its
first two
homology groups are trivial: H1(G, Z) = H2(G, Z) =...
-
adjacent to
either a
Mersenne prime or a
Fermat prime. 64 is the
fourth superperfect number — a
number such that σ(σ(n)) = 2n. 64 is the sum of Euler's totient...
- pentation, 2[5]3{\displaystyle 2[5]3} (hyperoperation notation). 65536 is a
superperfect number – a
number such that σ(σ(n)) = 2n. A 16-bit
number can distinguish...
- 642 = 163 = 84 = 46 = 212,
smallest number with
exactly 13 factors, a
superperfect number 4104 = 23 + 163 = 93 + 153 4127 – safe
prime 4133 – super-prime...
- 55 + 65 + 75 + 95 + 115 262,144 = 218;
exponential factorial of 4; a
superperfect number 262,468 =
Leyland number 268,705 =
Leyland number 274,177 = prime...
- prime, 8191,
splits into 4095 and 4096, with the
latter being the
fifth superperfect number and the
sixth power of four, 46. In
figurate numbers, 5 is a pentagonal...
- List of
Mersenne primes and
perfect numbers Multiply perfect number Superperfect numbers Unitary perfect number Harmonic divisor number All
factors of...
-
Refactorable Semiperfect Sublime Superabundant Superior highly composite Superperfect Prime omega functions Almost prime Semiprime Euler's
totient function...
