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4238223 = 311128431
BaseRepresentation
bin10000001010101110001111
321222022202020
4100022232033
52041110343
6230501223
751011223
oct20125617
97868666
104238223
112435270
121504813
13b55132
147c4783
1558ab83
hex40ab8f

4238223 has 8 divisors (see below), whose sum is σ = 6164736. Its totient is φ = 2568600.

The previous prime is 4238189. The next prime is 4238231. The reversal of 4238223 is 3228324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4238223 - 28 = 4237967 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 4238193 and 4238202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4230223) 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 7 ways as a sum of consecutive naturals, for example, 64183 + ... + 64248.

It is an arithmetic number, because the mean of its divisors is an integer number (770592).

Almost surely, 24238223 is an apocalyptic number.

4238223 is a deficient number, since it is larger than the sum of its proper divisors (1926513).

4238223 is a wasteful number, since it uses less digits than its factorization.

4238223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128445.

The product of its digits is 2304, while the sum is 24.

The square root of 4238223 is about 2058.6944892334. The cubic root of 4238223 is about 161.8308324017.

It can be divided in two parts, 423 and 8223, that added together give a triangular number (8646 = T131).

The spelling of 4238223 in words is "four million, two hundred thirty-eight thousand, two hundred twenty-three".

Divisors: 1 3 11 33 128431 385293 1412741 4238223