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227105449 is a prime number
BaseRepresentation
bin11011000100101…
…01101010101001
3120211100011002221
431202111222221
5431114333244
634311354041
75425236004
oct1542255251
9524304087
10227105449
1110721675a
1264082921
133808792c
142223a53b
1514e10784
hexd895aa9

227105449 has 2 divisors, whose sum is σ = 227105450. Its totient is φ = 227105448.

The previous prime is 227105447. The next prime is 227105453. The reversal of 227105449 is 944501722.

227105449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226352025 + 753424 = 15045^2 + 868^2 .

It is a cyclic number.

It is not a de Polignac number, because 227105449 - 21 = 227105447 is a prime.

Together with 227105447, it forms a pair of twin primes.

It is equal to p12492268 and since 227105449 and 12492268 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (227105441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113552724 + 113552725.

It is an arithmetic number, because the mean of its divisors is an integer number (113552725).

Almost surely, 2227105449 is an apocalyptic number.

It is an amenable number.

227105449 is a deficient number, since it is larger than the sum of its proper divisors (1).

227105449 is an equidigital number, since it uses as much as digits as its factorization.

227105449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 227105449 is about 15070.0182149857. The cubic root of 227105449 is about 610.1114631037. Note that the first 3 decimals are identical.

The spelling of 227105449 in words is "two hundred twenty-seven million, one hundred five thousand, four hundred forty-nine".