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131244342423 = 381715354071
BaseRepresentation
bin111101000111011000…
…1011011110010010111
3110112202122101101112020
41322032301123302113
54122242022424143
6140143125424223
712324233334555
oct1721661336227
9415678341466
10131244342423
115072a011aa7
122152956b073
13c4b792321c
1464d085cbd5
15363220c883
hex1e8ec5bc97

131244342423 has 8 divisors (see below), whose sum is σ = 175013905536. Its totient is φ = 87485503800.

The previous prime is 131244342421. The next prime is 131244342511. The reversal of 131244342423 is 324243442131.

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

It is not a de Polignac number, because 131244342423 - 21 = 131244342421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131244342421) 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, 2652523 + ... + 2701548.

It is an arithmetic number, because the mean of its divisors is an integer number (21876738192).

Almost surely, 2131244342423 is an apocalyptic number.

131244342423 is a deficient number, since it is larger than the sum of its proper divisors (43769563113).

131244342423 is an equidigital number, since it uses as much as digits as its factorization.

131244342423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5362245.

The product of its digits is 55296, while the sum is 33.

Adding to 131244342423 its reverse (324243442131), we get a palindrome (455487784554).

The spelling of 131244342423 in words is "one hundred thirty-one billion, two hundred forty-four million, three hundred forty-two thousand, four hundred twenty-three".

Divisors: 1 3 8171 24513 5354071 16062213 43748114141 131244342423