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Just showing those entries submitted by 'Carmichael': (Click here to show all) 496050841 = 11 * 13 * 19 * 41 * 61 * 73 is the first 6brilliant Carmichael number. 6 is also the truncation of two of the integers in its sum of squares representation: 22096^2 + 2796^2 + 3^2. It has 9 digits (6 inverted); its digital sum is the prime 37 (the reversal of its largest prime factor); the sum of its prime factors is semiprime (218 = 2 * 109). [Carmichael]
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