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22054401 = 3223106543
BaseRepresentation
bin101010000100…
…0011000000001
31112111110221200
41110020120001
521121220101
62104411413
7355313355
oct124103001
945443850
1022054401
11114a3886
127476b69
134752555
142d01465
151e09986
hex1508601

22054401 has 12 divisors (see below), whose sum is σ = 33241728. Its totient is φ = 14063544.

The previous prime is 22054393. The next prime is 22054427. The reversal of 22054401 is 10445022.

22054401 is a `hidden beast` number, since 220 + 5 + 440 + 1 = 666.

It is not a de Polignac number, because 22054401 - 23 = 22054393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22054481) 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 in 11 ways as a sum of consecutive naturals, for example, 53065 + ... + 53478.

It is an arithmetic number, because the mean of its divisors is an integer number (2770144).

Almost surely, 222054401 is an apocalyptic number.

It is an amenable number.

22054401 is a deficient number, since it is larger than the sum of its proper divisors (11187327).

22054401 is a wasteful number, since it uses less digits than its factorization.

22054401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106572 (or 106569 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 22054401 is about 4696.2113453293. The cubic root of 22054401 is about 280.4347031705.

Adding to 22054401 its reverse (10445022), we get a palindrome (32499423).

The spelling of 22054401 in words is "twenty-two million, fifty-four thousand, four hundred one".

Divisors: 1 3 9 23 69 207 106543 319629 958887 2450489 7351467 22054401