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2238223 = 13172171
BaseRepresentation
bin1000100010011100001111
311012201021011
420202130033
51033110343
6115550051
725011301
oct10423417
94181234
102238223
111299679
128bb327
136049c0
14423971
152e329d
hex22270f

2238223 has 4 divisors (see below), whose sum is σ = 2410408. Its totient is φ = 2066040.

The previous prime is 2238217. The next prime is 2238233. The reversal of 2238223 is 3228322.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2238223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2238194 and 2238203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238233) 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, 86073 + ... + 86098.

It is an arithmetic number, because the mean of its divisors is an integer number (602602).

22238223 is an apocalyptic number.

2238223 is a deficient number, since it is larger than the sum of its proper divisors (172185).

2238223 is a wasteful number, since it uses less digits than its factorization.

2238223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172184.

The product of its digits is 1152, while the sum is 22.

The square root of 2238223 is about 1496.0691828923. The cubic root of 2238223 is about 130.8080439398.

Subtracting 2238223 from its reverse (3228322), we obtain a palindrome (990099).

The spelling of 2238223 in words is "two million, two hundred thirty-eight thousand, two hundred twenty-three".

Divisors: 1 13 172171 2238223