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226553449 is a prime number
BaseRepresentation
bin11011000000011…
…10111001101001
3120210022002220111
431200032321221
5430444202244
634251454321
75420446453
oct1540167151
9523262814
10226553449
11106979a61
1263a573a1
1337c235c5
14221352d3
1514d51e34
hexd80ee69

226553449 has 2 divisors, whose sum is σ = 226553450. Its totient is φ = 226553448.

The previous prime is 226553447. The next prime is 226553497. The reversal of 226553449 is 944355622.

226553449 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., 171793449 + 54760000 = 13107^2 + 7400^2 .

It is a cyclic number.

It is not a de Polignac number, because 226553449 - 21 = 226553447 is a prime.

Together with 226553447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (226553447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113276724 + 113276725.

It is an arithmetic number, because the mean of its divisors is an integer number (113276725).

Almost surely, 2226553449 is an apocalyptic number.

It is an amenable number.

226553449 is a deficient number, since it is larger than the sum of its proper divisors (1).

226553449 is an equidigital number, since it uses as much as digits as its factorization.

226553449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 40.

The square root of 226553449 is about 15051.6925626323. The cubic root of 226553449 is about 609.6167520090.

The spelling of 226553449 in words is "two hundred twenty-six million, five hundred fifty-three thousand, four hundred forty-nine".