山水娱乐

  • REVERSAL-ADDITION PALINDROME TEST ON 167

    Reverse and Add Process:

    1. Pick a number.
    2. Reverse its digits and add this value to the original number.
    3. If this is not a palindrome, go back to step 2 and repeat.
    Let's view this Reverse and Add sequence starting with 167:
    167
    + 761
    step 1: 928
    + 829
    step 2: 1757
    + 7571
    step 3: 9328
    + 8239
    step 4: 17567
    + 76571
    step 5: 94138
    + 83149
    step 6: 177287
    + 782771
    step 7: 960058
    + 850069
    step 8: 1810127
    + 7210181
    step 9: 9020308
    + 8030209
    step 10: 17050517
    + 71505071
    step 11: 88555588
    167 takes 11 iterations / steps to resolve into a 8 digit palindrome.

    REVERSAL-ADDITION PALINDROME RECORDS

    Most Delayed Palindromic Number for each digit length
    (Only iteration counts for which no smaller records exist are considered. My program records only the smallest number that resolves for each distinct iteration count. For example, there are 18-digit numbers that resolve in 232 iterations, higher than the 228 iteration record shown for 18-digit numbers, but they were not recorded, as a smaller [17-digit] number already holds the record for 232 iterations.)

    DigitsNumberResult
    2
    3
    4
    5
    6
    7
    8
    9
    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    89
    187
    1,297
    10,911
    150,296
    9,008,299
    10,309,988
    140,669,390
    1,005,499,526
    10,087,799,570
    100,001,987,765
    1,600,005,969,190
    14,104,229,999,995
    100,120,849,299,260
    1,030,020,097,997,900
    10,442,000,392,399,960
    170,500,000,303,619,996
    1,186,060,307,891,929,990
    solves in 24 iterations.
    solves in 23 iterations.
    solves in 21 iterations.
    solves in 55 iterations.
    solves in 64 iterations.
    solves in 96 iterations.
    solves in 95 iterations.
    solves in 98 iterations.
    solves in 109 iterations.
    solves in 149 iterations.
    solves in 143 iterations.
    solves in 188 iterations.
    solves in 182 iterations.
    solves in 201 iterations.
    solves in 197 iterations.
    solves in 236 iterations.
    solves in 228 iterations.
    solves in 261 iterations - World Record!
    [View all records]

    This reverse and add program was created by Jason Doucette.
    Please visit my Palindromes and World Records page.
    You have permission to use the data from this webpage (with due credit).
    A link to my website is much appreciated. Thank you.

    (This program has been run 2,061,602 times since Saturday, March 9th, 2002.)
  • 九州体育平v台

    皇冠足球投注现金网

    利来国际网络w66

    亚博娱乐首页

    贝斯特奢华游戏平台

    发彩票平台登录

    正版星力平台客服

    福客来彩票注册首页

    ca888亚洲城娱乐