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131245431743 = 439878334039
BaseRepresentation
bin111101000111011010…
…1100101101110111111
3110112202201102201210102
41322032311211232333
54122242312303433
6140143205031315
712324245522456
oct1721665455677
9415681381712
10131245431743
115072a696468
12215299b553b
13c4b7c14caa
1464d0a63b9d
1536323754e8
hex1e8ed65bbf

131245431743 has 8 divisors (see below), whose sum is σ = 131563238400. Its totient is φ = 130927711608.

The previous prime is 131245431703. The next prime is 131245431767. The reversal of 131245431743 is 347134542131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131245431743 - 26 = 131245431679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131245431697 and 131245431706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131245431703) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3838718 + ... + 3872756.

It is an arithmetic number, because the mean of its divisors is an integer number (16445404800).

Almost surely, 2131245431743 is an apocalyptic number.

131245431743 is a deficient number, since it is larger than the sum of its proper divisors (317806657).

131245431743 is an equidigital number, since it uses as much as digits as its factorization.

131245431743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43261.

The product of its digits is 120960, while the sum is 38.

Adding to 131245431743 its reverse (347134542131), we get a palindrome (478379973874).

The spelling of 131245431743 in words is "one hundred thirty-one billion, two hundred forty-five million, four hundred thirty-one thousand, seven hundred forty-three".

Divisors: 1 439 8783 34039 3855737 14943121 298964537 131245431743