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224312105 = 544862421
BaseRepresentation
bin11010101111010…
…11101100101001
3120122002020100202
431113223230221
5424410441410
634131441545
75362423103
oct1527535451
9518066322
10224312105
11105689006
12631562b5
133761a374
1421b10573
1514a5cca5
hexd5ebb29

224312105 has 4 divisors (see below), whose sum is σ = 269174532. Its totient is φ = 179449680.

The previous prime is 224312087. The next prime is 224312113. The reversal of 224312105 is 501213422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501213422 = 2250606711.

It can be written as a sum of positive squares in 2 ways, for example, as 75203584 + 149108521 = 8672^2 + 12211^2 .

It is not a de Polignac number, because 224312105 - 212 = 224308009 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 22431206 + ... + 22431215.

It is an arithmetic number, because the mean of its divisors is an integer number (67293633).

Almost surely, 2224312105 is an apocalyptic number.

It is an amenable number.

224312105 is a deficient number, since it is larger than the sum of its proper divisors (44862427).

224312105 is an equidigital number, since it uses as much as digits as its factorization.

224312105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44862426.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 224312105 is about 14977.0526139157. The cubic root of 224312105 is about 607.5997273435.

Adding to 224312105 its reverse (501213422), we get a palindrome (725525527).

The spelling of 224312105 in words is "two hundred twenty-four million, three hundred twelve thousand, one hundred five".

Divisors: 1 5 44862421 224312105