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13061 = 37353
BaseRepresentation
bin11001100000101
3122220202
43030011
5404221
6140245
753036
oct31405
918822
1013061
1198a4
127685
135c39
144a8d
153d0b
hex3305

13061 has 4 divisors (see below), whose sum is σ = 13452. Its totient is φ = 12672.

The previous prime is 13049. The next prime is 13063. The reversal of 13061 is 16031.

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 8836 + 4225 = 94^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 13061 - 210 = 12037 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 (13063) 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, 140 + ... + 213.

It is an arithmetic number, because the mean of its divisors is an integer number (3363).

213061 is an apocalyptic number.

It is an amenable number.

13061 is a deficient number, since it is larger than the sum of its proper divisors (391).

13061 is an equidigital number, since it uses as much as digits as its factorization.

13061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 13061 is about 114.2847321386. The cubic root of 13061 is about 23.5500667894.

Adding to 13061 its reverse (16031), we get a palindrome (29092).

It can be divided in two parts, 130 and 61, that added together give a palindrome (191).

The spelling of 13061 in words is "thirteen thousand, sixty-one".

Divisors: 1 37 353 13061