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13161422 = 231212281
BaseRepresentation
bin110010001101…
…001111001110
3220202200002002
4302031033032
511332131142
61150032302
7216604331
oct62151716
926680062
1013161422
11747a40a
1244a8692
13295a831
141a68618
15124ea32
hexc8d3ce

13161422 has 8 divisors (see below), whose sum is σ = 20379072. Its totient is φ = 6368400.

The previous prime is 13161419. The next prime is 13161427. The reversal of 13161422 is 22416131.

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

It is a junction number, because it is equal to n+sod(n) for n = 13161394 and 13161403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13161427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106079 + ... + 106202.

It is an arithmetic number, because the mean of its divisors is an integer number (2547384).

Almost surely, 213161422 is an apocalyptic number.

13161422 is a deficient number, since it is larger than the sum of its proper divisors (7217650).

13161422 is a wasteful number, since it uses less digits than its factorization.

13161422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212314.

The product of its digits is 288, while the sum is 20.

The square root of 13161422 is about 3627.8674176436. The cubic root of 13161422 is about 236.1026915916.

Adding to 13161422 its reverse (22416131), we get a palindrome (35577553).

The spelling of 13161422 in words is "thirteen million, one hundred sixty-one thousand, four hundred twenty-two".

Divisors: 1 2 31 62 212281 424562 6580711 13161422