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13131361 = 171077219
BaseRepresentation
bin110010000101…
…111001100001
3220201010211201
4302011321201
511330200421
61145241201
7216420565
oct62057141
926633751
1013131361
117459871
124493201
132949c49
141a5b6a5
151245b91
hexc85e61

13131361 has 8 divisors (see below), whose sum is σ = 14035680. Its totient is φ = 12241728.

The previous prime is 13131359. The next prime is 13131373. The reversal of 13131361 is 16313131.

13131361 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 13131361 - 21 = 13131359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13131331) 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, 1791 + ... + 5428.

It is an arithmetic number, because the mean of its divisors is an integer number (1754460).

Almost surely, 213131361 is an apocalyptic number.

It is an amenable number.

13131361 is a deficient number, since it is larger than the sum of its proper divisors (904319).

13131361 is a wasteful number, since it uses less digits than its factorization.

13131361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7343.

The product of its digits is 162, while the sum is 19.

The square root of 13131361 is about 3623.7219816095. The cubic root of 13131361 is about 235.9227998472.

Adding to 13131361 its reverse (16313131), we get a palindrome (29444492).

The spelling of 13131361 in words is "thirteen million, one hundred thirty-one thousand, three hundred sixty-one".

Divisors: 1 17 107 1819 7219 122723 772433 13131361