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224342231 = 297735939
BaseRepresentation
bin11010101111100…
…11000011010111
3120122010202200112
431113303003113
5424412422411
634132233235
75362606661
oct1527630327
9518122615
10224342231
111056a9703
126316b81b
133762aca9
1421b1b531
1514a66b8b
hexd5f30d7

224342231 has 4 divisors (see below), whose sum is σ = 232078200. Its totient is φ = 216606264.

The previous prime is 224342227. The next prime is 224342243. The reversal of 224342231 is 132243422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 224342231 - 22 = 224342227 is a prime.

It is a super-2 number, since 2×2243422312 = 100658873220114722, 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 = 224342197 and 224342206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224342281) 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, 3867941 + ... + 3867998.

It is an arithmetic number, because the mean of its divisors is an integer number (58019550).

Almost surely, 2224342231 is an apocalyptic number.

224342231 is a deficient number, since it is larger than the sum of its proper divisors (7735969).

224342231 is an equidigital number, since it uses as much as digits as its factorization.

224342231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7735968.

The product of its digits is 2304, while the sum is 23.

The square root of 224342231 is about 14978.0583187541. The cubic root of 224342231 is about 607.6269271388.

Adding to 224342231 its reverse (132243422), we get a palindrome (356585653).

The spelling of 224342231 in words is "two hundred twenty-four million, three hundred forty-two thousand, two hundred thirty-one".

Divisors: 1 29 7735939 224342231