A reasonable estimate of the sum of 78 and 119 is 197.
8.0641
78 + 89 + 167 + 897 + 78 = 1309
87+42+78 = 207
The sum is 1407.
26.
24 is a reasonable estimate. (78% of 31 is 24.18).
78 + 41 = 119
The sum of 67 and 78 is 145.
78 + 85 = 163
78 protons, 78 electrons and 119 neutrons
8.0641
Mean: 90.9 Median: 98.5 Mode: 30, 119
How about: 11+67 = 78
78 + 89 + 167 + 897 + 78 = 1309
87+42+78 = 207
The number 78 is classified as a deficient number. A perfect number is equal to the sum of its proper divisors, and an abundant number has a sum of proper divisors greater than the number itself. The proper divisors of 78 (1, 2, 3, 6, 13, 26, and 39) sum to 90, which is greater than 78, indicating that 78 is actually abundant.
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