# self number

> a natural number that cannot be written as the sum of any other natural number n and the individual digits of n

**Wikidata**: [Q2623827](https://www.wikidata.org/wiki/Q2623827)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Self_number)  
**Source**: https://4ort.xyz/entity/self-number


## References

1. Freebase Data Dumps. 2013