13177388 is a super interesting number. You can write with the sum of the powers of sevens, and 13177388 = 7¹+7³+7¹+7⁷+7⁷+7³+7⁸+7⁸. But if you check the exponents, you will see the same number. These numbers are called Perfect Digit-to-Digit Invariants.
13177388
13177388 is a super interesting number. You can write with the sum of the powers of sevens, and 13177388 = 7¹+7³+7¹+7⁷+7⁷+7³+7⁸+7⁸.
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