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13242077 = 14988873
BaseRepresentation
bin110010100000…
…111011011101
3220220202201022
4302200323131
511342221302
61151453525
7220361432
oct62407335
926822638
1013242077
117524a72
1245272a5
132988464
141a89b89
1512688a2
hexca0edd

13242077 has 4 divisors (see below), whose sum is σ = 13331100. Its totient is φ = 13153056.

The previous prime is 13242071. The next prime is 13242079. The reversal of 13242077 is 77024231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 77024231 = 274928019.

It can be written as a sum of positive squares in 2 ways, for example, as 5480281 + 7761796 = 2341^2 + 2786^2 .

It is a cyclic number.

It is not a de Polignac number, because 13242077 - 26 = 13242013 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 (13242071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44288 + ... + 44585.

It is an arithmetic number, because the mean of its divisors is an integer number (3332775).

Almost surely, 213242077 is an apocalyptic number.

It is an amenable number.

13242077 is a deficient number, since it is larger than the sum of its proper divisors (89023).

13242077 is an equidigital number, since it uses as much as digits as its factorization.

13242077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89022.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 13242077 is about 3638.9664741517. The cubic root of 13242077 is about 236.5839996497.

The spelling of 13242077 in words is "thirteen million, two hundred forty-two thousand, seventy-seven".

Divisors: 1 149 88873 13242077