What is the sum of the 4-digit Babylonian narcissistic numbers?

This problem's question is: What is the sum of the 4-digit Babylonian narcissistic numbers?

A narcissistic number is a number in the specified base (the default is base 10) whose length without leading zeroes in the base is the power to which its non-zero digits are raised and then the powers summed and if that sum is the original number, then the number is narcissistic.

For the purposes of this problem, a Babylonian number simply means that its representation is base 60.

For example, a three digit decimal (base 10) number, 153 is narcissistic: 1 3 + 5 3 + 3 3 = 1 + 125 + 27 = 153 1^3+5^3+3^3=1+125+27=153 .

To help you, the four digit Bablylonian numbers have decimal values between 216 000 216\,000 and 12 959 999 12\,959\,999 .


The answer is 5679699.

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1 solution

There is only one four digit base 60 narcissistic number: 5 679 69 9 10 5\,679\,699_{10} or { 26 , 17 , 41 , 39 } 60 \{26,17,41,39\}_{60} .

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