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224542423 = 732077489
BaseRepresentation
bin11010110001000…
…11111011010111
3120122111221022001
431120203323113
5424440324143
634140420131
75364402430
oct1530437327
9518457261
10224542423
11105826056
1263247647
133769b151
1421b70487
1514aa614d
hexd623ed7

224542423 has 4 divisors (see below), whose sum is σ = 256619920. Its totient is φ = 192464928.

The previous prime is 224542421. The next prime is 224542429. The reversal of 224542423 is 324245422.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324245422 = 2162122711.

It is a cyclic number.

It is not a de Polignac number, because 224542423 - 21 = 224542421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224542391 and 224542400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224542421) 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, 16038738 + ... + 16038751.

It is an arithmetic number, because the mean of its divisors is an integer number (64154980).

Almost surely, 2224542423 is an apocalyptic number.

224542423 is a deficient number, since it is larger than the sum of its proper divisors (32077497).

224542423 is an equidigital number, since it uses as much as digits as its factorization.

224542423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32077496.

The product of its digits is 15360, while the sum is 28.

The square root of 224542423 is about 14984.7396707450. The cubic root of 224542423 is about 607.8076122238.

Adding to 224542423 its reverse (324245422), we get a palindrome (548787845).

The spelling of 224542423 in words is "two hundred twenty-four million, five hundred forty-two thousand, four hundred twenty-three".

Divisors: 1 7 32077489 224542423