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13542313 = 13798849
BaseRepresentation
bin110011101010…
…001110101001
3221111000120011
4303222032221
511431323223
61202131521
7223051651
oct63521651
927430504
1013542313
11770a5a4
124650ba1
132a62005
141b27361
1512c780d
hexcea3a9

13542313 has 4 divisors (see below), whose sum is σ = 13641300. Its totient is φ = 13443328.

The previous prime is 13542311. The next prime is 13542317. The reversal of 13542313 is 31324531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31324531 = 74474933.

It can be written as a sum of positive squares in 2 ways, for example, as 6290064 + 7252249 = 2508^2 + 2693^2 .

It is a cyclic number.

It is not a de Polignac number, because 13542313 - 21 = 13542311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13542311) 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, 49288 + ... + 49561.

It is an arithmetic number, because the mean of its divisors is an integer number (3410325).

Almost surely, 213542313 is an apocalyptic number.

It is an amenable number.

13542313 is a deficient number, since it is larger than the sum of its proper divisors (98987).

13542313 is an equidigital number, since it uses as much as digits as its factorization.

13542313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98986.

The product of its digits is 1080, while the sum is 22.

The square root of 13542313 is about 3679.9881793288. The cubic root of 13542313 is about 238.3586676032.

Adding to 13542313 its reverse (31324531), we get a palindrome (44866844).

The spelling of 13542313 in words is "thirteen million, five hundred forty-two thousand, three hundred thirteen".

Divisors: 1 137 98849 13542313