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13922 = 26961
BaseRepresentation
bin11011001100010
3201002122
43121202
5421142
6144242
755406
oct33142
921078
1013922
11a507
128082
13644c
145106
1541d2
hex3662

13922 has 4 divisors (see below), whose sum is σ = 20886. Its totient is φ = 6960.

The previous prime is 13921. The next prime is 13931. The reversal of 13922 is 22931.

13922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22931 = 23997.

It can be written as a sum of positive squares in only one way, i.e., 10201 + 3721 = 101^2 + 61^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13922.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 13922.

It is not an unprimeable number, because it can be changed into a prime (13921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3479 + ... + 3482.

213922 is an apocalyptic number.

13922 is a deficient number, since it is larger than the sum of its proper divisors (6964).

13922 is an equidigital number, since it uses as much as digits as its factorization.

13922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6963.

The product of its digits is 108, while the sum is 17.

The square root of 13922 is about 117.9915251194. The cubic root of 13922 is about 24.0565794733.

Subtracting 13922 from its reverse (22931), we obtain a palindrome (9009).

It can be divided in two parts, 139 and 22, that added together give a palindrome (161).

The spelling of 13922 in words is "thirteen thousand, nine hundred twenty-two".

Divisors: 1 2 6961 13922