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22054361 = 723114519
BaseRepresentation
bin101010000100…
…0010111011001
31112111110220012
41110020113121
521121214421
62104411305
7355313300
oct124102731
945443805
1022054361
11114a384a
127476b35
134752524
142d01437
151e0995b
hex15085d9

22054361 has 12 divisors (see below), whose sum is σ = 26484480. Its totient is φ = 18292680.

The previous prime is 22054343. The next prime is 22054379. The reversal of 22054361 is 16345022.

It is an interprime number because it is at equal distance from previous prime (22054343) and next prime (22054379).

It is a de Polignac number, because none of the positive numbers 2k-22054361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22054301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5741 + ... + 8778.

It is an arithmetic number, because the mean of its divisors is an integer number (2207040).

Almost surely, 222054361 is an apocalyptic number.

It is an amenable number.

22054361 is a deficient number, since it is larger than the sum of its proper divisors (4430119).

22054361 is a wasteful number, since it uses less digits than its factorization.

22054361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14564 (or 14557 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 22054361 is about 4696.2070865753. The cubic root of 22054361 is about 280.4345336292.

Adding to 22054361 its reverse (16345022), we get a palindrome (38399383).

The spelling of 22054361 in words is "twenty-two million, fifty-four thousand, three hundred sixty-one".

Divisors: 1 7 31 49 217 1519 14519 101633 450089 711431 3150623 22054361