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Meertens number : ウィキペディア英語版 | Meertens number In mathematical logic, a Meertens number is an integer that is its own Gödel number. The Gödel encoding of a decimal number with ''n'' digits is the product of the first ''n'' primes raised to the values of their corresponding digits in the sequence. The only Meertens number that has been found is 81312000 = 28315371112130170190. It was "given" to Lambert Meertens by Richard S. Bird as a present during the celebration of his 25 years at the CWI, Amsterdam. If other Meertens number exist, they must be greater than 1 × 1025.〔(Nicolas PALAU : No new Meertens number < 1 × 1025 )〕 == References == 〔
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