Owlet puzzle #55
Released Saturday, August 29, 2026 UTC
370
the answer for puzzle #55
The five clues
- A three-digit even number.
- A three-digit multiple of 10 whose non-zero digits sum to 10.
- A three-digit narcissistic number that ends in zero.
- Sum of cubes of its digits: 3³ + 7³ + 0³ = 27 + 343 + 0.
- Sum of cubes of digits equals itself.
Backstory
370 = 3³ + 7³ + 0³. Every zero in a narcissistic digit contributes nothing — the other digits carry the weight. The full set of 3-digit narcissistic numbers is exactly {153, 370, 371, 407}, and no such number exists with 61 or more digits.
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