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224147 = 7114171
BaseRepresentation
bin110110101110010011
3102101110202
4312232103
524133042
64445415
71622330
oct665623
9371422
10224147
11143450
12a986b
137b041
145b987
1546632
hex36b93

224147 has 16 divisors (see below), whose sum is σ = 290304. Its totient is φ = 168000.

The previous prime is 224131. The next prime is 224149. The reversal of 224147 is 741422.

It is not a de Polignac number, because 224147 - 24 = 224131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224149) 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 15 ways as a sum of consecutive naturals, for example, 3122 + ... + 3192.

It is an arithmetic number, because the mean of its divisors is an integer number (18144).

2224147 is an apocalyptic number.

224147 is a deficient number, since it is larger than the sum of its proper divisors (66157).

224147 is a wasteful number, since it uses less digits than its factorization.

224147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130.

The product of its digits is 448, while the sum is 20.

The square root of 224147 is about 473.4416542722. The cubic root of 224147 is about 60.7450616092.

Adding to 224147 its reverse (741422), we get a palindrome (965569).

The spelling of 224147 in words is "two hundred twenty-four thousand, one hundred forty-seven", and thus it is an iban number.

Divisors: 1 7 11 41 71 77 287 451 497 781 2911 3157 5467 20377 32021 224147