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131442140423 = 11103483115471
BaseRepresentation
bin111101001101010001…
…1111110010100000111
3110120021102120120101002
41322122203332110013
54123143141443143
6140214513123515
712332154521246
oct1723243762407
9416242516332
10131442140423
1150820730620
122158385959b
13c5198b9169
14650cc2a95d
15364477e5b8
hex1e9a8fe507

131442140423 has 8 divisors (see below), whose sum is σ = 143394053376. Its totient is φ = 119490665400.

The previous prime is 131442140413. The next prime is 131442140437. The reversal of 131442140423 is 324041244131.

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 131442140423 - 236 = 62722663687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131442140413) 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, 1080578 + ... + 1196048.

It is an arithmetic number, because the mean of its divisors is an integer number (17924256672).

Almost surely, 2131442140423 is an apocalyptic number.

131442140423 is a deficient number, since it is larger than the sum of its proper divisors (11951912953).

131442140423 is a wasteful number, since it uses less digits than its factorization.

131442140423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218965.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 131442140423 its reverse (324041244131), we get a palindrome (455483384554).

The spelling of 131442140423 in words is "one hundred thirty-one billion, four hundred forty-two million, one hundred forty thousand, four hundred twenty-three".

Divisors: 1 11 103483 115471 1138313 1270181 11949285493 131442140423