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224143 = 1947251
BaseRepresentation
bin110110101110001111
3102101110121
4312232033
524133033
64445411
71622323
oct665617
9371417
10224143
11143447
12a9867
137b03a
145b983
154662d
hex36b8f

224143 has 8 divisors (see below), whose sum is σ = 241920. Its totient is φ = 207000.

The previous prime is 224131. The next prime is 224149. The reversal of 224143 is 341422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-224143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 768 + ... + 1018.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2224143 is an apocalyptic number.

224143 is a deficient number, since it is larger than the sum of its proper divisors (17777).

224143 is a wasteful number, since it uses less digits than its factorization.

224143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its digits is 192, while the sum is 16.

The square root of 224143 is about 473.4374298680. The cubic root of 224143 is about 60.7447002664.

Adding to 224143 its reverse (341422), we get a palindrome (565565).

The spelling of 224143 in words is "two hundred twenty-four thousand, one hundred forty-three", and thus it is an iban number.

Divisors: 1 19 47 251 893 4769 11797 224143