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131432333 = 214361331
BaseRepresentation
bin1111101010101…
…11111110001101
3100011022110021012
413311113332031
5232121313313
621013015005
73154104434
oct765277615
9304273235
10131432333
116821006a
1238024465
13212ca716
141365411b
15b812da8
hex7d57f8d

131432333 has 4 divisors (see below), whose sum is σ = 131495808. Its totient is φ = 131368860.

The previous prime is 131432317. The next prime is 131432383. The reversal of 131432333 is 333234131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131432333 - 24 = 131432317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131432299 and 131432308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131432303) 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, 28523 + ... + 32808.

It is an arithmetic number, because the mean of its divisors is an integer number (32873952).

Almost surely, 2131432333 is an apocalyptic number.

It is an amenable number.

131432333 is a deficient number, since it is larger than the sum of its proper divisors (63475).

131432333 is an equidigital number, since it uses as much as digits as its factorization.

131432333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63474.

The product of its digits is 1944, while the sum is 23.

The square root of 131432333 is about 11464.3941401192. The cubic root of 131432333 is about 508.4333997994.

Adding to 131432333 its reverse (333234131), we get a palindrome (464666464).

The spelling of 131432333 in words is "one hundred thirty-one million, four hundred thirty-two thousand, three hundred thirty-three".

Divisors: 1 2143 61331 131432333