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13130041 = 16778623
BaseRepresentation
bin110010000101…
…100100111001
3220201002000211
4302011210321
511330130131
61145231121
7216414001
oct62054471
926632024
1013130041
117458881
1244924a1
132949472
141a5b001
1512455b1
hexc85939

13130041 has 4 divisors (see below), whose sum is σ = 13208832. Its totient is φ = 13051252.

The previous prime is 13130027. The next prime is 13130053. The reversal of 13130041 is 14003131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14003131 = 37378463.

It is a cyclic number.

It is not a de Polignac number, because 13130041 - 25 = 13130009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13130071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39145 + ... + 39478.

It is an arithmetic number, because the mean of its divisors is an integer number (3302208).

Almost surely, 213130041 is an apocalyptic number.

It is an amenable number.

13130041 is a deficient number, since it is larger than the sum of its proper divisors (78791).

13130041 is an equidigital number, since it uses as much as digits as its factorization.

13130041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78790.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13130041 is about 3623.5398438543. The cubic root of 13130041 is about 235.9148943826.

Adding to 13130041 its reverse (14003131), we get a palindrome (27133172).

The spelling of 13130041 in words is "thirteen million, one hundred thirty thousand, forty-one".

Divisors: 1 167 78623 13130041