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13222361 = 97271503
BaseRepresentation
bin110010011100…
…000111011001
3220212202200002
4302130013121
511341103421
61151222345
7220250105
oct62340731
926782602
1013222361
117511179
1245179b5
13297c4a9
141a82905
151262b0b
hexc9c1d9

13222361 has 8 divisors (see below), whose sum is σ = 13434624. Its totient is φ = 13011840.

The previous prime is 13222343. The next prime is 13222411. The reversal of 13222361 is 16322231.

It is a happy number.

13222361 is digitally balanced in base 2, 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 13222361 - 210 = 13221337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13222301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26036 + ... + 26538.

It is an arithmetic number, because the mean of its divisors is an integer number (1679328).

Almost surely, 213222361 is an apocalyptic number.

It is an amenable number.

13222361 is a deficient number, since it is larger than the sum of its proper divisors (212263).

13222361 is an equidigital number, since it uses as much as digits as its factorization.

13222361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871.

The product of its digits is 432, while the sum is 20.

The square root of 13222361 is about 3636.2564541022. The cubic root of 13222361 is about 236.4665254542.

Adding to 13222361 its reverse (16322231), we get a palindrome (29544592).

The spelling of 13222361 in words is "thirteen million, two hundred twenty-two thousand, three hundred sixty-one".

Divisors: 1 97 271 503 26287 48791 136313 13222361