キА计

и祇瞷Τㄇ计 (Prime Number) ㄏ篒赣计羆㎝讽い计计计计и獽嘿ぇキА计 (Average Prime) 

 83篒材 23 计 83ゎ计羆㎝ 2 + 3 + 5 + ... + 83 = 874τ 874 ォ琌 23  38 ┮ 83 琌キА计

ㄇㄒ

k 材 k 计 计羆㎝ 计羆㎝ / k
1 2 2 2
23 83 874 38
53 241 5830 110
853 6599 2615298 3066
11869 126551 712377380 60020
117267 154479 86810649294 740282
339615 4864121 764712005370 2340038
3600489 60686767 105784534314378 29380602
96643287 1966194317 92542301212047102 957565746
2664167025 63481708607 82704567079549985700 31043311588
43435512311 1161468891953 24733255676526572596026 569424748566

и眖计羆㎝ / k 禫ㄓ禫计だ (Distribution of Primes) 琌禫ㄓ禫祡波

把σゅ膍の呼

Rivera, C. "Problems & Puzzles: Puzzle 031 - The Average Prime Number. APN(k) = S(Pk) / k" http://www.primepuzzles.net/puzzles/puzz_031.htm.

Wells, D. "Average Prime." From The Most Mysterious Figures in Math - Prime Numbers" , New Jersey: John Wiley & Sons, Inc. pp 15-16, 2005