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31130110330 = 25111316073559
BaseRepresentation
bin11100111111011111…
…111100100101111010
32222100111210110022021
4130333133330211322
51002223302012310
622145002145054
72151301400104
oct347737744572
988314713267
1031130110330
1112225154710
1260494b218a
132c21559037
141714584574
15c22e5b5da
hex73f7fc97a

31130110330 has 64 divisors (see below), whose sum is σ = 61713653760. Its totient is φ = 11211969600.

The previous prime is 31130110309. The next prime is 31130110421. The reversal of 31130110330 is 3301103113.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8745091 + ... + 8748649.

It is an arithmetic number, because the mean of its divisors is an integer number (964275840).

Almost surely, 231130110330 is an apocalyptic number.

31130110330 is a deficient number, since it is larger than the sum of its proper divisors (30583543430).

31130110330 is a wasteful number, since it uses less digits than its factorization.

31130110330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4315.

The product of its (nonzero) digits is 81, while the sum is 16.

Adding to 31130110330 its reverse (3301103113), we get a palindrome (34431213443).

The spelling of 31130110330 in words is "thirty-one billion, one hundred thirty million, one hundred ten thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 131 262 607 655 1214 1310 1441 2882 3035 3559 6070 6677 7118 7205 13354 14410 17795 33385 35590 39149 66770 78298 79517 159034 195745 391490 397585 466229 795170 874687 932458 1749374 2160313 2331145 4320626 4373435 4662290 5128519 8746870 10257038 10801565 21603130 23763443 25642595 47526886 51285190 118817215 237634430 283001003 566002006 1415005015 2830010030 3113011033 6226022066 15565055165 31130110330