Zseq (version 0.1.1)

Perfect: Perfect numbers

Description

Under OEIS A000396, a Perfect number is a number whose proper divisors sum up to the extent equal to the number itself. First 6 abundant numbers are 6, 28, 496, 8128, 33550336, 8589869056.

Usage

Perfect(n, Rmpfr = TRUE, PrecisionBits = 496)

Arguments

n

the number of first n entries from the sequence.

Rmpfr

a logical; TRUE to use large number representation, FALSE otherwise.

PrecisionBits

a positive integer for precision bits larger than 2.

Value

a vector of length n containing first entries from the sequence.

See Also

Deficient, Abundant

Examples

# NOT RUN {
## generate first 7 Perfect numbers
first7 = Perfect(10)

## print without trailing 0's.
print(first7, drop0trailing = TRUE)

# }