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13530265415 = 52706053083
BaseRepresentation
bin11001001100111011…
…10111011101000111
31021220221120200212022
430212131313131013
5210202221443130
610114332313355
7656202233642
oct144635673507
937827520768
1013530265415
115813533737
12275731285b
1313781c2814
14924d5ca59
15542c977e5
hex326777747

13530265415 has 4 divisors (see below), whose sum is σ = 16236318504. Its totient is φ = 10824212328.

The previous prime is 13530265349. The next prime is 13530265451. The reversal of 13530265415 is 51456203531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51456203531 = 71724735261.

It is a cyclic number.

It is not a de Polignac number, because 13530265415 - 28 = 13530265159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353026537 + ... + 1353026546.

It is an arithmetic number, because the mean of its divisors is an integer number (4059079626).

Almost surely, 213530265415 is an apocalyptic number.

13530265415 is a deficient number, since it is larger than the sum of its proper divisors (2706053089).

13530265415 is an equidigital number, since it uses as much as digits as its factorization.

13530265415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706053088.

The product of its (nonzero) digits is 54000, while the sum is 35.

Adding to 13530265415 its reverse (51456203531), we get a palindrome (64986468946).

The spelling of 13530265415 in words is "thirteen billion, five hundred thirty million, two hundred sixty-five thousand, four hundred fifteen".

Divisors: 1 5 2706053083 13530265415