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131210332312 = 2319783255287
BaseRepresentation
bin111101000110010111…
…1101100100010011000
3110112200021101111102111
41322030233230202120
54122204321113222
6140135512442104
712323341264663
oct1721457544230
9415607344374
10131210332312
11507118a2774
122151a0a9334
13c4b0875bb7
1464ca1286da
15362e240777
hex1e8cbec898

131210332312 has 16 divisors (see below), whose sum is σ = 247268205360. Its totient is φ = 65272144224.

The previous prime is 131210332261. The next prime is 131210332313. The reversal of 131210332312 is 213233012131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131210332313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41626068 + ... + 41629219.

It is an arithmetic number, because the mean of its divisors is an integer number (15454262835).

Almost surely, 2131210332312 is an apocalyptic number.

It is an amenable number.

131210332312 is a deficient number, since it is larger than the sum of its proper divisors (116057873048).

131210332312 is a wasteful number, since it uses less digits than its factorization.

131210332312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83255490 (or 83255486 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 131210332312 its reverse (213233012131), we get a palindrome (344443344443).

The spelling of 131210332312 in words is "one hundred thirty-one billion, two hundred ten million, three hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 8 197 394 788 1576 83255287 166510574 333021148 666042296 16401291539 32802583078 65605166156 131210332312