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BaseRepresentation
bin11110000010
32122012
4132002
530142
612522
75414
oct3602
92565
101922
111498
121142
13b4b
149b4
15882
hex782

1922 has 6 divisors (see below), whose sum is σ = 2979. Its totient is φ = 930.

The previous prime is 1913. The next prime is 1931. The reversal of 1922 is 2291.

1922 is nontrivially palindromic in base 13.

1922 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1913) and next prime (1931).

It can be written as a sum of positive squares in only one way, i.e., 961 + 961 = 31^2 + 31^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=31.

It is a Duffinian number.

1922 is an undulating number in base 13.

1922 is strictly pandigital in base 5.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 1897 and 1906.

It is an unprimeable number.

1922 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 47 + ... + 77.

1922 is a deficient number, since it is larger than the sum of its proper divisors (1057).

1922 is an equidigital number, since it uses as much as digits as its factorization.

1922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64 (or 33 counting only the distinct ones).

The product of its digits is 36, while the sum is 14.

The square root of 1922 is about 43.8406204336. The cubic root of 1922 is about 12.4332441269.

Adding to 1922 its sum of digits (14), we get a square (1936 = 442).

The spelling of 1922 in words is "one thousand, nine hundred twenty-two".

Divisors: 1 2 31 62 961 1922