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13130311 = 196111329
BaseRepresentation
bin110010000101…
…101001000111
3220201002101211
4302011221013
511330132221
61145232251
7216414535
oct62055107
926632354
1013130311
117458aa7
124492687
13294961c
141a5b155
1512456e1
hexc85a47

13130311 has 8 divisors (see below), whose sum is σ = 14049200. Its totient is φ = 12234240.

The previous prime is 13130297. The next prime is 13130317. The reversal of 13130311 is 11303131.

It is a happy number.

13130311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13130311 - 213 = 13122119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13130291 and 13130300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130317) 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 7 ways as a sum of consecutive naturals, for example, 4506 + ... + 6823.

It is an arithmetic number, because the mean of its divisors is an integer number (1756150).

Almost surely, 213130311 is an apocalyptic number.

13130311 is a deficient number, since it is larger than the sum of its proper divisors (918889).

13130311 is a wasteful number, since it uses less digits than its factorization.

13130311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11409.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 13130311 is about 3623.5771000491. The cubic root of 13130311 is about 235.9165114525.

Adding to 13130311 its reverse (11303131), we get a palindrome (24433442).

The spelling of 13130311 in words is "thirteen million, one hundred thirty thousand, three hundred eleven".

Divisors: 1 19 61 1159 11329 215251 691069 13130311