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13161313 = 112352021
BaseRepresentation
bin110010001101…
…001101100001
3220202122221001
4302031031201
511332130223
61150032001
7216604114
oct62151541
926678831
1013161313
11747a320
1244a8601
13295a779
141a6857b
15124e9ad
hexc8d361

13161313 has 8 divisors (see below), whose sum is σ = 14982336. Its totient is φ = 11444400.

The previous prime is 13161301. The next prime is 13161347. The reversal of 13161313 is 31316131.

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

It is a de Polignac number, because none of the positive numbers 2k-13161313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13162313) 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, 25758 + ... + 26263.

It is an arithmetic number, because the mean of its divisors is an integer number (1872792).

Almost surely, 213161313 is an apocalyptic number.

It is an amenable number.

13161313 is a deficient number, since it is larger than the sum of its proper divisors (1821023).

13161313 is a wasteful number, since it uses less digits than its factorization.

13161313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52055.

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

The square root of 13161313 is about 3627.8523950128. The cubic root of 13161313 is about 236.1020398063.

Adding to 13161313 its reverse (31316131), we get a palindrome (44477444).

The spelling of 13161313 in words is "thirteen million, one hundred sixty-one thousand, three hundred thirteen".

Divisors: 1 11 23 253 52021 572231 1196483 13161313