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22404230 = 2519117917
BaseRepresentation
bin101010101110…
…1110010000110
31120011020211022
41111131302012
521213413410
62120111142
7361301312
oct125356206
946136738
1022404230
11117126a2
1276054b2
134845854
142d92b42
151e78455
hex155dc86

22404230 has 16 divisors (see below), whose sum is σ = 42450480. Its totient is φ = 8489952.

The previous prime is 22404229. The next prime is 22404233. The reversal of 22404230 is 3240422.

It is a junction number, because it is equal to n+sod(n) for n = 22404199 and 22404208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58769 + ... + 59148.

It is an arithmetic number, because the mean of its divisors is an integer number (2653155).

Almost surely, 222404230 is an apocalyptic number.

22404230 is a deficient number, since it is larger than the sum of its proper divisors (20046250).

22404230 is a wasteful number, since it uses less digits than its factorization.

22404230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117943.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 22404230 is about 4733.3106806970. The cubic root of 22404230 is about 281.9096922572.

Adding to 22404230 its reverse (3240422), we get a palindrome (25644652).

The spelling of 22404230 in words is "twenty-two million, four hundred four thousand, two hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 117917 235834 589585 1179170 2240423 4480846 11202115 22404230