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224123 = 792837
BaseRepresentation
bin110110101101111011
3102101102212
4312231323
524132443
64445335
71622264
oct665573
9371385
10224123
11143429
12a984b
137b023
145b96b
1546618
hex36b7b

224123 has 4 divisors (see below), whose sum is σ = 227040. Its totient is φ = 221208.

The previous prime is 224113. The next prime is 224129. The reversal of 224123 is 321422.

Adding to 224123 its reverse (321422), we get a palindrome (545545).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321422 = 2160711.

It is a cyclic number.

It is not a de Polignac number, because 224123 - 210 = 223099 is a prime.

It is a super-2 number, since 2×2241232 = 100462238258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224098 and 224107.

It is not an unprimeable number, because it can be changed into a prime (224129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1340 + ... + 1497.

It is an arithmetic number, because the mean of its divisors is an integer number (56760).

2224123 is an apocalyptic number.

224123 is a deficient number, since it is larger than the sum of its proper divisors (2917).

224123 is an equidigital number, since it uses as much as digits as its factorization.

224123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2916.

The product of its digits is 96, while the sum is 14.

The square root of 224123 is about 473.4163072814. The cubic root of 224123 is about 60.7428934881.

The spelling of 224123 in words is "two hundred twenty-four thousand, one hundred twenty-three", and thus it is an iban number.

Divisors: 1 79 2837 224123