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131342323 = 7174332549
BaseRepresentation
bin1111101010000…
…01111111110011
3100011010212210111
413311001333303
5232110423243
621011042151
73153251140
oct765017763
9304125714
10131342323
1168159482
1237ba0357
1321298768
141362d3c7
15b7e639d
hex7d41ff3

131342323 has 16 divisors (see below), whose sum is σ = 159364800. Its totient is φ = 105670656.

The previous prime is 131342287. The next prime is 131342347. The reversal of 131342323 is 323243131.

It is not a de Polignac number, because 131342323 - 213 = 131334131 is a prime.

It is a super-2 number, since 2×1313423232 = 34501611622072658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131342294 and 131342303.

It is not an unprimeable number, because it can be changed into a prime (131342023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50253 + ... + 52801.

It is an arithmetic number, because the mean of its divisors is an integer number (9960300).

Almost surely, 2131342323 is an apocalyptic number.

131342323 is a deficient number, since it is larger than the sum of its proper divisors (28022477).

131342323 is a wasteful number, since it uses less digits than its factorization.

131342323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006.

The product of its digits is 1296, while the sum is 22.

The square root of 131342323 is about 11460.4678351278. The cubic root of 131342323 is about 508.3173082708.

Adding to 131342323 its reverse (323243131), we get a palindrome (454585454).

The spelling of 131342323 in words is "one hundred thirty-one million, three hundred forty-two thousand, three hundred twenty-three".

Divisors: 1 7 17 119 433 2549 3031 7361 17843 43333 51527 303331 1103717 7726019 18763189 131342323