|
Search: id:A124667
|
|
|
| A124667 |
|
Prime numbers p such that the sum of the digits of p equals the sums of the digits of p^3. |
|
+0
1
|
|
| 487, 577, 4877, 5851, 15877, 467587, 496187, 697967, 5889959, 8194787, 14596991, 17978887, 27698887, 47959487, 58590487, 58678903, 59489371, 79492771, 79897897, 79932871, 109148887, 109696969, 145969757, 227799577, 276857947
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
EXAMPLE
|
487^3=115501303 - the sum of the digits of 487 and 115501303 is the same and is equal 19.
|
|
MATHEMATICA
|
Select[Range[10000000], PrimeQ[ # ] && Plus @@ IntegerDigits[ # ] == Plus @@ IntegerDigits[ #^3] &]
|
|
CROSSREFS
|
An equivalent sequence for squares is A058370 = Primes p such that p and p^2 have same digit sum. This sequence is prime subsequence of A070276 = Sum of digits of n equals the sum of digits of n^3.
Sequence in context: A130181 A128969 A097765 this_sequence A142540 A048424 A142858
Adjacent sequences: A124664 A124665 A124666 this_sequence A124668 A124669 A124670
|
|
KEYWORD
|
base,nonn
|
|
AUTHOR
|
Tanya Khovanova (tanyakh(AT)yahoo.com), Dec 23 2006
|
|
EXTENSIONS
|
More terms from Olaf Voss (richyfourtythree(AT)yahoo.com), Feb 11 2008
|
|
|
Search completed in 0.002 seconds
|
