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A101701
Numbers n such that n = sum of the reversals of divisors of n.
1
1, 207321, 890827, 7591023, 18368601, 4885292403
OFFSET
1,2
COMMENTS
a(7) > 10^11. - Donovan Johnson, Dec 27 2013
EXAMPLE
18368601 is in the sequence because divisors of 18368601 are 1, 3, 6122867, 18368601 and 18368601 = 1 + 3 + 7682216 + 10686381.
MATHEMATICA
Do[h = Divisors[n]; l = Length[h]; If[n == Sum[ FromDigits[Reverse[IntegerDigits[h[[k]]]]], {k, l}], Print[n]], {n, 370000000}]
PROG
(Python)
from sympy import divisors
A101701_list = [n for n in range(1, 10**6) if n == sum([int(d) for d in (str(x)[::-1] for x in divisors(n))])]
# Chai Wah Wu, Dec 06 2014
CROSSREFS
Sequence in context: A115946 A082176 A178285 * A092011 A362758 A216900
KEYWORD
base,more,nonn
AUTHOR
Farideh Firoozbakht, Dec 23 2004
EXTENSIONS
a(6) from Donovan Johnson, Dec 07 2008
STATUS
approved