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2221032349 is a prime number
BaseRepresentation
bin1000010001100010…
…0100001110011101
312201210021010121101
42010120210032131
514022041013344
61004220233101
7106016314654
oct20430441635
95653233541
102221032349
11a3a795528
1251b99b791
132951b6933
14170d9419b
15ceec39d4
hex8462439d

2221032349 has 2 divisors, whose sum is σ = 2221032350. Its totient is φ = 2221032348.

The previous prime is 2221032323. The next prime is 2221032391. The reversal of 2221032349 is 9432301222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1908379225 + 312653124 = 43685^2 + 17682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2221032349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2221032449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110516174 + 1110516175.

It is an arithmetic number, because the mean of its divisors is an integer number (1110516175).

Almost surely, 22221032349 is an apocalyptic number.

It is an amenable number.

2221032349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221032349 is an equidigital number, since it uses as much as digits as its factorization.

2221032349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 2221032349 is about 47127.8298778970. The cubic root of 2221032349 is about 1304.7229289985.

The spelling of 2221032349 in words is "two billion, two hundred twenty-one million, thirty-two thousand, three hundred forty-nine".