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4172223 = 311232239
BaseRepresentation
bin1111111010100110111111
321211222012210
433322212333
52032002343
6225231503
750314626
oct17724677
97758183
104172223
11239a720
121492593
13b31093
147a86bd
15576333
hex3fa9bf

4172223 has 24 divisors (see below), whose sum is σ = 6370560. Its totient is φ = 2408560.

The previous prime is 4172183. The next prime is 4172239. The reversal of 4172223 is 3222714.

It is not a de Polignac number, because 4172223 - 26 = 4172159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4172223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4172243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17338 + ... + 17576.

It is an arithmetic number, because the mean of its divisors is an integer number (265440).

Almost surely, 24172223 is an apocalyptic number.

4172223 is a deficient number, since it is larger than the sum of its proper divisors (2198337).

4172223 is a wasteful number, since it uses less digits than its factorization.

4172223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299 (or 276 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 4172223 is about 2042.6020170361. The cubic root of 4172223 is about 160.9863934079.

Adding to 4172223 its reverse (3222714), we get a palindrome (7394937).

The spelling of 4172223 in words is "four million, one hundred seventy-two thousand, two hundred twenty-three".

Divisors: 1 3 11 23 33 69 239 253 529 717 759 1587 2629 5497 5819 7887 16491 17457 60467 126431 181401 379293 1390741 4172223