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4228223 = 17248719
BaseRepresentation
bin10000001000010001111111
321221211000212
4100020101333
52040300343
6230343035
750640116
oct20102177
97854025
104228223
1124287aa
1214baa7b
13b5070c
147c0c7d
15587c18
hex40847f

4228223 has 4 divisors (see below), whose sum is σ = 4476960. Its totient is φ = 3979488.

The previous prime is 4228199. The next prime is 4228243. The reversal of 4228223 is 3228224.

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

It is a cyclic number.

It is not a de Polignac number, because 4228223 - 28 = 4227967 is a prime.

It is a d-powerful number, because it can be written as 4 + 25 + 210 + 82 + 215 + 222 + 33 .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228243) 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, 124343 + ... + 124376.

It is an arithmetic number, because the mean of its divisors is an integer number (1119240).

Almost surely, 24228223 is an apocalyptic number.

4228223 is a deficient number, since it is larger than the sum of its proper divisors (248737).

4228223 is a wasteful number, since it uses less digits than its factorization.

4228223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248736.

The product of its digits is 1536, while the sum is 23.

The square root of 4228223 is about 2056.2643312570. The cubic root of 4228223 is about 161.7034533261.

Subtracting from 4228223 its reverse (3228224), we obtain a palindrome (999999).

The spelling of 4228223 in words is "four million, two hundred twenty-eight thousand, two hundred twenty-three".

Divisors: 1 17 248719 4228223