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13251432311405 = 5103197130613891
BaseRepresentation
bin1100000011010101011011…
…1010100110101001101101
31201220211021002202100021022
43000311112322212221231
53214102413132431110
644103342435343525
72535245563110221
oct300652672465155
951824232670238
1013251432311405
1142499a0091782
1215a0271a51ba5
137517b26c9b42
1433b530b5a781
1517ea780c9755
hexc0d56ea6a6d

13251432311405 has 16 divisors (see below), whose sum is σ = 16137607584384. Its totient is φ = 10444931555520.

The previous prime is 13251432311363. The next prime is 13251432311407. The reversal of 13251432311405 is 50411323415231.

It is not a de Polignac number, because 13251432311405 - 28 = 13251432311149 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 (13251432311407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65205491 + ... + 65408400.

It is an arithmetic number, because the mean of its divisors is an integer number (1008600474024).

Almost surely, 213251432311405 is an apocalyptic number.

It is an amenable number.

13251432311405 is a deficient number, since it is larger than the sum of its proper divisors (2886175272979).

13251432311405 is a wasteful number, since it uses less digits than its factorization.

13251432311405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130614196.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 13251432311405 its reverse (50411323415231), we get a palindrome (63662755726636).

The spelling of 13251432311405 in words is "thirteen trillion, two hundred fifty-one billion, four hundred thirty-two million, three hundred eleven thousand, four hundred five".

Divisors: 1 5 103 197 515 985 20291 101455 130613891 653069455 13453230773 25730936527 67266153865 128654682635 2650286462281 13251432311405