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22054933 = 171297349
BaseRepresentation
bin101010000100…
…0100000010101
31112111111200101
41110020200111
521121224213
62104414101
7355315045
oct124104025
945444611
1022054933
11114a421a
127477331
134752874
142d01725
151e09bdd
hex1508815

22054933 has 4 divisors (see below), whose sum is σ = 23352300. Its totient is φ = 20757568.

The previous prime is 22054931. The next prime is 22054937. The reversal of 22054933 is 33945022.

22054933 is nontrivially palindromic in base 4.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19158129 + 2896804 = 4377^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 22054933 - 21 = 22054931 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22054931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648658 + ... + 648691.

It is an arithmetic number, because the mean of its divisors is an integer number (5838075).

Almost surely, 222054933 is an apocalyptic number.

It is an amenable number.

22054933 is a deficient number, since it is larger than the sum of its proper divisors (1297367).

22054933 is a wasteful number, since it uses less digits than its factorization.

22054933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297366.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 22054933 is about 4696.2679863909. The cubic root of 22054933 is about 280.4369580502.

Adding to 22054933 its reverse (33945022), we get a palindrome (55999955).

The spelling of 22054933 in words is "twenty-two million, fifty-four thousand, nine hundred thirty-three".

Divisors: 1 17 1297349 22054933