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13420304345453 = 23956151901027
BaseRepresentation
bin1100001101001010100001…
…1110010010100101101101
31202111222011002021111222212
43003102220132102211231
53224334240403023303
644313111441220205
72553404436525005
oct303225036224555
952458132244885
1013420304345453
114304578a33385
121608b40931665
137646b5a61045
14345790a95005
1518415d8b7ad8
hexc34a879296d

13420304345453 has 4 divisors (see below), whose sum is σ = 13476456246720. Its totient is φ = 13364152444188.

The previous prime is 13420304345429. The next prime is 13420304345489. The reversal of 13420304345453 is 35454340302431.

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 13420304345453 - 28 = 13420304345197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13420304345453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420304375453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28075950275 + ... + 28075950752.

It is an arithmetic number, because the mean of its divisors is an integer number (3369114061680).

Almost surely, 213420304345453 is an apocalyptic number.

It is an amenable number.

13420304345453 is a deficient number, since it is larger than the sum of its proper divisors (56151901267).

13420304345453 is an equidigital number, since it uses as much as digits as its factorization.

13420304345453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56151901266.

The product of its (nonzero) digits is 1036800, while the sum is 41.

Adding to 13420304345453 its reverse (35454340302431), we get a palindrome (48874644647884).

The spelling of 13420304345453 in words is "thirteen trillion, four hundred twenty billion, three hundred four million, three hundred forty-five thousand, four hundred fifty-three".

Divisors: 1 239 56151901027 13420304345453