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228810223 is a prime number
BaseRepresentation
bin11011010001101…
…01110111101111
3120221112202121201
431220311313233
5432033411343
634412110331
75445566125
oct1550656757
9527482551
10228810223
11108180564
12647653a7
1338533885
1422561915
151514a94d
hexda35def

228810223 has 2 divisors, whose sum is σ = 228810224. Its totient is φ = 228810222.

The previous prime is 228810221. The next prime is 228810227. The reversal of 228810223 is 322018822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228810223 - 21 = 228810221 is a prime.

Together with 228810221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 228810191 and 228810200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228810221) 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, 114405111 + 114405112.

It is an arithmetic number, because the mean of its divisors is an integer number (114405112).

Almost surely, 2228810223 is an apocalyptic number.

228810223 is a deficient number, since it is larger than the sum of its proper divisors (1).

228810223 is an equidigital number, since it uses as much as digits as its factorization.

228810223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 228810223 is about 15126.4742422020. The cubic root of 228810223 is about 611.6342659011.

The spelling of 228810223 in words is "two hundred twenty-eight million, eight hundred ten thousand, two hundred twenty-three".