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2228162173 is a prime number
BaseRepresentation
bin1000010011001111…
…0000111001111101
312202021200100212221
42010303300321331
514030402142143
61005033125341
7106134031426
oct20463607175
95667610787
102228162173
11a43815246
12522259851
13296811c73
14171ccc64d
15d09312ed
hex84cf0e7d

2228162173 has 2 divisors, whose sum is σ = 2228162174. Its totient is φ = 2228162172.

The previous prime is 2228162119. The next prime is 2228162203. The reversal of 2228162173 is 3712618222.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2171280409 + 56881764 = 46597^2 + 7542^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228162173 - 213 = 2228153981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2228162113) 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 as a sum of consecutive naturals, namely, 1114081086 + 1114081087.

It is an arithmetic number, because the mean of its divisors is an integer number (1114081087).

Almost surely, 22228162173 is an apocalyptic number.

It is an amenable number.

2228162173 is a deficient number, since it is larger than the sum of its proper divisors (1).

2228162173 is an equidigital number, since it uses as much as digits as its factorization.

2228162173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 2228162173 is about 47203.4127262002. The cubic root of 2228162173 is about 1306.1175520173.

The spelling of 2228162173 in words is "two billion, two hundred twenty-eight million, one hundred sixty-two thousand, one hundred seventy-three".