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131324927 = 413203047
BaseRepresentation
bin1111101001111…
…01101111111111
3100011002222221012
413310331233333
5232104344202
621010425435
73153146336
oct764755777
9304088835
10131324927
11681473a8
1237b9227b
1321290876
1413626d1d
15b7e1152
hex7d3dbff

131324927 has 4 divisors (see below), whose sum is σ = 134528016. Its totient is φ = 128121840.

The previous prime is 131324911. The next prime is 131324933. The reversal of 131324927 is 729423131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 729423131 = 1742907243.

It is a cyclic number.

It is not a de Polignac number, because 131324927 - 24 = 131324911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131324893 and 131324902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131324987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601483 + ... + 1601564.

It is an arithmetic number, because the mean of its divisors is an integer number (33632004).

Almost surely, 2131324927 is an apocalyptic number.

131324927 is a deficient number, since it is larger than the sum of its proper divisors (3203089).

131324927 is an equidigital number, since it uses as much as digits as its factorization.

131324927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3203088.

The product of its digits is 9072, while the sum is 32.

The square root of 131324927 is about 11459.7088531952. The cubic root of 131324927 is about 508.2948654458.

The spelling of 131324927 in words is "one hundred thirty-one million, three hundred twenty-four thousand, nine hundred twenty-seven".

Divisors: 1 41 3203047 131324927