Self-descriptive number

As a self-describing refers to an integer number m, in the point located on the n- th position indicates the number of times that the number n-1 occurs in this figure. The number is so self-descriptive, as the number can be reconstructed solely from knowledge of their digits in the mind.

Example of a descriptive even in the decimal number is 6210001000, as the number six zeros, two ones, a two, three, zero, zero fours, fives zero, a six, seven zero zero zero eight and nine contain.

There is no self-describing number consisting of two, three or six digits. The sum of a self- descriptive number always corresponds to their number of digits.

Swell

• Clifford Pickover: Keys to Infinity, chapter 28, " Chaos in Ontario ", Wiley, New York 1995, pp. 217-219, ISBN 978-0471193340
• Eric W. Weisstein: self- descriptive number. In: MathWorld (English).

• Integer amount