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224111231 is a prime number
BaseRepresentation
bin11010101101110…
…10101001111111
3120121201000210222
431112322221333
5424333024411
634123251555
75360625341
oct1526725177
9517630728
10224111231
111055610a3
1263079bbb
1337579ac6
1421a9b291
1514a1d4db
hexd5baa7f

224111231 has 2 divisors, whose sum is σ = 224111232. Its totient is φ = 224111230.

The previous prime is 224111203. The next prime is 224111233. The reversal of 224111231 is 132111422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224111231 - 226 = 157002367 is a prime.

It is a super-2 number, since 2×2241112312 = 100451687720670722, which contains 22 as substring.

Together with 224111233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224111233) 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 as a sum of consecutive naturals, namely, 112055615 + 112055616.

It is an arithmetic number, because the mean of its divisors is an integer number (112055616).

Almost surely, 2224111231 is an apocalyptic number.

224111231 is a deficient number, since it is larger than the sum of its proper divisors (1).

224111231 is an equidigital number, since it uses as much as digits as its factorization.

224111231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 17.

The square root of 224111231 is about 14970.3450528036. The cubic root of 224111231 is about 607.4183023918.

Adding to 224111231 its reverse (132111422), we get a palindrome (356222653).

The spelling of 224111231 in words is "two hundred twenty-four million, one hundred eleven thousand, two hundred thirty-one".