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13420454454541 = 73442318273467
BaseRepresentation
bin1100001101001011000101…
…1010111010010100001101
31202111222112112201211221201
43003102301122322110031
53224340042320021131
644313134402425501
72553411241450561
oct303226132722415
952458475654851
1013420454454541
11430464573a582
121608b83062291
1376470ab9a7a4
143457a69ab6a1
1518416bb69761
hexc34b16ba50d

13420454454541 has 4 divisors (see below), whose sum is σ = 13420473462432. Its totient is φ = 13420435446652.

The previous prime is 13420454454529. The next prime is 13420454454557. The reversal of 13420454454541 is 14545445402431.

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 13420454454541 - 217 = 13420454323469 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13420454454491 and 13420454454500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420454451541) 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, 8402311 + ... + 9871156.

It is an arithmetic number, because the mean of its divisors is an integer number (3355118365608).

Almost surely, 213420454454541 is an apocalyptic number.

It is an amenable number.

13420454454541 is a deficient number, since it is larger than the sum of its proper divisors (19007891).

13420454454541 is an equidigital number, since it uses as much as digits as its factorization.

13420454454541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19007890.

The product of its (nonzero) digits is 3072000, while the sum is 46.

Adding to 13420454454541 its reverse (14545445402431), we get a palindrome (27965899856972).

The spelling of 13420454454541 in words is "thirteen trillion, four hundred twenty billion, four hundred fifty-four million, four hundred fifty-four thousand, five hundred forty-one".

Divisors: 1 734423 18273467 13420454454541