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13243523453533 = 118211120338673
BaseRepresentation
bin1100000010110111111110…
…0000101101001001011101
31201220001211220211201212101
43000231333200231021131
53213440214001003113
644055553553205101
72534545566660442
oct300557740551135
951801756751771
1013243523453533
1142466018057aa
12159a825260791
13750b22018799
1433adc06199c9
1517e763ad42dd
hexc0b7f82d25d

13243523453533 has 4 divisors (see below), whose sum is σ = 13244643804028. Its totient is φ = 13242403103040.

The previous prime is 13243523453509. The next prime is 13243523453539. The reversal of 13243523453533 is 33535432534231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 932147768484 + 12311375685049 = 965478^2 + 3508757^2 .

It is a cyclic number.

It is not a de Polignac number, because 13243523453533 - 221 = 13243521356381 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 (13243523453539) 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 3 ways as a sum of consecutive naturals, for example, 560157516 + ... + 560181157.

It is an arithmetic number, because the mean of its divisors is an integer number (3311160951007).

Almost surely, 213243523453533 is an apocalyptic number.

It is an amenable number.

13243523453533 is a deficient number, since it is larger than the sum of its proper divisors (1120350495).

13243523453533 is a wasteful number, since it uses less digits than its factorization.

13243523453533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120350494.

The product of its digits is 5832000, while the sum is 46.

Adding to 13243523453533 its reverse (33535432534231), we get a palindrome (46778955987764).

The spelling of 13243523453533 in words is "thirteen trillion, two hundred forty-three billion, five hundred twenty-three million, four hundred fifty-three thousand, five hundred thirty-three".

Divisors: 1 11821 1120338673 13243523453533