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13530454511 = 71932922073
BaseRepresentation
bin11001001100111101…
…00101100111101111
31021220221221022020212
430212132211213233
5210202244021021
610114340333035
7656203652150
oct144636454757
937827838225
1013530454511
115813652812
1227573a417b
13137825a902
14924dab927
15542cd385b
hex3267a59ef

13530454511 has 4 divisors (see below), whose sum is σ = 15463376592. Its totient is φ = 11597532432.

The previous prime is 13530454507. The next prime is 13530454529. The reversal of 13530454511 is 11545403531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11545403531 = 13198753149.

It is a cyclic number.

It is not a de Polignac number, because 13530454511 - 22 = 13530454507 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 (13530454541) 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, 966461030 + ... + 966461043.

It is an arithmetic number, because the mean of its divisors is an integer number (3865844148).

Almost surely, 213530454511 is an apocalyptic number.

13530454511 is a deficient number, since it is larger than the sum of its proper divisors (1932922081).

13530454511 is an equidigital number, since it uses as much as digits as its factorization.

13530454511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932922080.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 13530454511 in words is "thirteen billion, five hundred thirty million, four hundred fifty-four thousand, five hundred eleven".

Divisors: 1 7 1932922073 13530454511