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131331331022012 = 22111928268152293
BaseRepresentation
bin11101110111000111110101…
…010101010101110010111100
3122020000011010021012120022122
4131313013311111111302330
5114203213031220201022
61143152440334102112
736443242545525512
oct3567076525256274
9566004107176278
10131331331022012
1138934339619a40
1212890a8504a938
1358386507218b4
14246068286a4b2
15102b368db4742
hex7771f5555cbc

131331331022012 has 36 divisors (see below), whose sum is σ = 264613946017176. Its totient is φ = 56554161677280.

The previous prime is 131331331021997. The next prime is 131331331022051. The reversal of 131331331022012 is 210220133133131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4134060263 + ... + 4134092030.

It is an arithmetic number, because the mean of its divisors is an integer number (7350387389366).

Almost surely, 2131331331022012 is an apocalyptic number.

It is an amenable number.

131331331022012 is an abundant number, since it is smaller than the sum of its proper divisors (133282614995164).

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

131331331022012 is a wasteful number, since it uses less digits than its factorization.

131331331022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8268152346 (or 8268152325 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 131331331022012 its reverse (210220133133131), we get a palindrome (341551464155143).

The spelling of 131331331022012 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, three hundred thirty-one million, twenty-two thousand, twelve".

Divisors: 1 2 4 11 19 22 38 44 76 209 361 418 722 836 1444 3971 7942 15884 8268152293 16536304586 33072609172 90949675223 157094893567 181899350446 314189787134 363798700892 628379574268 1728043829237 2984802977773 3456087658474 5969605955546 6912175316948 11939211911092 32832832755503 65665665511006 131331331022012