self-descriptive number
b-digit long integer m in a given base b where each digit d at position n counts how many instances of digit n are in m
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self-descriptive number
Summary
self-descriptive number ranks in the top 2% of general entities by monthly Wikipedia readership (18 views/month).[1]
Key Facts
- self-descriptive number's subclass of is recorded as autobiographical number[2].
- self-descriptive number's subclass of is recorded as harshad number[3].
- self-descriptive number's Freebase ID is recorded as /m/06cdnx[4].
- self-descriptive number's OEIS ID is recorded as A046043[5].
- self-descriptive number's different from is recorded as Look-and-say sequence[6].
- self-descriptive number's MathWorld ID is recorded as Self-DescriptiveNumber[7].
- self-descriptive number's maintained by WikiProject is recorded as WikiProject Mathematics[8].
- self-descriptive number's Microsoft Academic ID is recorded as 15138738[9].
Why It Matters
self-descriptive number ranks in the top 2% of general entities by monthly Wikipedia readership (18 views/month).[1] It has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[10] It is known by 3 alternative names across languages and contexts.[11]