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131311323332 = 2274689690119
BaseRepresentation
bin111101001001011000…
…0111100100011000100
3110112221022102101001122
41322102300330203010
54122411144321312
6140153521213112
712326005555310
oct1722260744304
9415838371048
10131311323332
1150763900822
1221547a91198
13c4c87757b7
1464d96d6b40
15363803db72
hex1e92c3c8c4

131311323332 has 12 divisors (see below), whose sum is σ = 262622646720. Its totient is φ = 56276281416.

The previous prime is 131311323331. The next prime is 131311323373. The reversal of 131311323332 is 233323113131.

131311323332 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (131311323331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2344845032 + ... + 2344845087.

It is an arithmetic number, because the mean of its divisors is an integer number (21885220560).

Almost surely, 2131311323332 is an apocalyptic number.

It is an amenable number.

131311323332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131311323332 is a wasteful number, since it uses less digits than its factorization.

131311323332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4689690130 (or 4689690128 counting only the distinct ones).

The product of its digits is 2916, while the sum is 26.

Adding to 131311323332 its reverse (233323113131), we get a palindrome (364634436463).

The spelling of 131311323332 in words is "one hundred thirty-one billion, three hundred eleven million, three hundred twenty-three thousand, three hundred thirty-two".

Divisors: 1 2 4 7 14 28 4689690119 9379380238 18758760476 32827830833 65655661666 131311323332