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224120223 = 338300749
BaseRepresentation
bin11010101101111…
…00110110011111
3120121201111011000
431112330312133
5424333321343
634123401343
75360663505
oct1526746637
9517644130
10224120223
11105567928
1263083253
1337580c22
1421aa0675
1514a20ed3
hexd5bcd9f

224120223 has 8 divisors (see below), whose sum is σ = 332030000. Its totient is φ = 149413464.

The previous prime is 224120213. The next prime is 224120251. The reversal of 224120223 is 322021422.

It is not a de Polignac number, because 224120223 - 28 = 224119967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224120196 and 224120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4150348 + ... + 4150401.

It is an arithmetic number, because the mean of its divisors is an integer number (41503750).

Almost surely, 2224120223 is an apocalyptic number.

224120223 is a deficient number, since it is larger than the sum of its proper divisors (107909777).

224120223 is an equidigital number, since it uses as much as digits as its factorization.

224120223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8300758 (or 8300752 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 224120223 is about 14970.6453768700. The cubic root of 224120223 is about 607.4264260845.

Adding to 224120223 its reverse (322021422), we get a palindrome (546141645).

The spelling of 224120223 in words is "two hundred twenty-four million, one hundred twenty thousand, two hundred twenty-three".

Divisors: 1 3 9 27 8300749 24902247 74706741 224120223