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224242153 = 1225318301
BaseRepresentation
bin11010101110110…
…10100111101001
3120121221200101221
431113122213221
5424401222103
634130142041
75362012132
oct1527324751
9517850357
10224242153
111056404a3
1263121921
13375c4585
1421ad2c89
1514a471bd
hexd5da9e9

224242153 has 4 divisors (see below), whose sum is σ = 224272708. Its totient is φ = 224211600.

The previous prime is 224242141. The next prime is 224242201. The reversal of 224242153 is 351242422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 41370624 + 182871529 = 6432^2 + 13523^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-224242153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224242133) 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 3 ways as a sum of consecutive naturals, for example, 3103 + ... + 21403.

It is an arithmetic number, because the mean of its divisors is an integer number (56068177).

Almost surely, 2224242153 is an apocalyptic number.

It is an amenable number.

224242153 is a deficient number, since it is larger than the sum of its proper divisors (30555).

224242153 is a wasteful number, since it uses less digits than its factorization.

224242153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30554.

The product of its digits is 3840, while the sum is 25.

The square root of 224242153 is about 14974.7171258759. The cubic root of 224242153 is about 607.5365605413.

Adding to 224242153 its reverse (351242422), we get a palindrome (575484575).

The spelling of 224242153 in words is "two hundred twenty-four million, two hundred forty-two thousand, one hundred fifty-three".

Divisors: 1 12253 18301 224242153