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A371004
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Fourth powers whose digital sum is also a fourth power.
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2
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0, 1, 10000, 14641, 100000000, 104060401, 146410000, 1000000000000, 1004006004001, 1040604010000, 1464100000000, 4228599998736, 8670998958336, 9748688599521, 9948826238976, 12598637895936, 19226786746896, 19896452775936, 20699669996721, 23768199069696, 26599197668481
(list;
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refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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COMMENTS
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Among the terms of this sequence, there are:
the numbers of the form 10^(4*k) with k >= 0;
the numbers of the form (10^i + 10^j)^4 with i > j >= 0.
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LINKS
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FORMULA
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MATHEMATICA
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Select[Range[0, 2500]^4, IntegerQ[DigitSum[#]^(1/4)]&]
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CROSSREFS
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KEYWORD
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nonn,base,easy
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AUTHOR
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STATUS
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approved
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